diff --git a/bugs/index.html b/bugs/index.html
index 09265446d361..7713f08cf5a3 100644
--- a/bugs/index.html
+++ b/bugs/index.html
@@ -9,7 +9,7 @@
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 <link rel="shortcut icon" type="image/x-icon" href="../images/archer-fish.ico" />
 <meta name="keywords" content="gdb" />
-<link rel="stylesheet" href="../css/site.css" />
+<link rel="stylesheet" href="../css/site.css?hash=54990fef3ff3855a54d10cd61077e249" />
 
 <title>Bugs in GDB</title>
 
diff --git a/committee/index.html b/committee/index.html
index 54d4a64d6608..e08656e683c3 100644
--- a/committee/index.html
+++ b/committee/index.html
@@ -9,7 +9,7 @@
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 <link rel="shortcut icon" type="image/x-icon" href="../images/archer-fish.ico" />
 <meta name="keywords" content="gdb" />
-<link rel="stylesheet" href="../css/site.css" />
+<link rel="stylesheet" href="../css/site.css?hash=54990fef3ff3855a54d10cd61077e249" />
 
 <title>The Official FSF-appointed GDB Maintainers</title>
 
diff --git a/committee/release-manager.html b/committee/release-manager.html
index 05ccae35cb2f..7ce37a9bb756 100644
--- a/committee/release-manager.html
+++ b/committee/release-manager.html
@@ -9,7 +9,7 @@
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 <link rel="shortcut icon" type="image/x-icon" href="../images/archer-fish.ico" />
 <meta name="keywords" content="gdb" />
-<link rel="stylesheet" href="../css/site.css" />
+<link rel="stylesheet" href="../css/site.css?hash=54990fef3ff3855a54d10cd61077e249" />
 
 <title>GDB Release Manager</title>
 
diff --git a/contribute/index.html b/contribute/index.html
index 16e0e4489031..c2b6e718471d 100644
--- a/contribute/index.html
+++ b/contribute/index.html
@@ -9,7 +9,7 @@
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 <link rel="shortcut icon" type="image/x-icon" href="../images/archer-fish.ico" />
 <meta name="keywords" content="gdb" />
-<link rel="stylesheet" href="../css/site.css" />
+<link rel="stylesheet" href="../css/site.css?hash=54990fef3ff3855a54d10cd61077e249" />
 
 <title>Contributing to GDB</title>
 
diff --git a/current/index.html b/current/index.html
index 93084cb9a6dd..157eef9ce04d 100644
--- a/current/index.html
+++ b/current/index.html
@@ -9,7 +9,7 @@
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 <link rel="shortcut icon" type="image/x-icon" href="../images/archer-fish.ico" />
 <meta name="keywords" content="gdb" />
-<link rel="stylesheet" href="../css/site.css" />
+<link rel="stylesheet" href="../css/site.css?hash=54990fef3ff3855a54d10cd61077e249" />
 
 <title>Current GDB</title>
 
diff --git a/documentation/index.html b/documentation/index.html
index c08253d87921..393f1c6a2513 100644
--- a/documentation/index.html
+++ b/documentation/index.html
@@ -9,7 +9,7 @@
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 <link rel="shortcut icon" type="image/x-icon" href="../images/archer-fish.ico" />
 <meta name="keywords" content="gdb" />
-<link rel="stylesheet" href="../css/site.css" />
+<link rel="stylesheet" href="../css/site.css?hash=54990fef3ff3855a54d10cd61077e249" />
 
 <title>GDB Documentation</title>
 
diff --git a/download/index.html b/download/index.html
index 68a69a69f784..5ffce7831cdc 100644
--- a/download/index.html
+++ b/download/index.html
@@ -9,7 +9,7 @@
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 <link rel="shortcut icon" type="image/x-icon" href="../images/archer-fish.ico" />
 <meta name="keywords" content="gdb" />
-<link rel="stylesheet" href="../css/site.css" />
+<link rel="stylesheet" href="../css/site.css?hash=54990fef3ff3855a54d10cd61077e249" />
 
 <title>Download GDB</title>
 
diff --git a/index.html b/index.html
index b619f5168b0a..1f8a92f4c432 100644
--- a/index.html
+++ b/index.html
@@ -9,7 +9,7 @@
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 <link rel="shortcut icon" type="image/x-icon" href="images/archer-fish.ico" />
 <meta name="keywords" content="gdb" />
-<link rel="stylesheet" href="css/site.css" />
+<link rel="stylesheet" href="css/site.css?hash=54990fef3ff3855a54d10cd61077e249" />
 
 <title>GDB: The GNU Project Debugger</title>
 
diff --git a/index.sh b/index.sh
index eced31b7ec51..20f06b8b1d9d 100755
--- a/index.sh
+++ b/index.sh
@@ -30,6 +30,7 @@ fi
 cd `dirname $1`
 index=`basename $1`
 echo "$1"
+: "${AWK:=awk}"
 
 cp ${index} index.in
 exec > index.out
@@ -45,6 +46,9 @@ do
     prefix="../${prefix}"
     dir=`dirname ${dir}`
 done
+# Hash the CSS contents so browsers will refetch when the file changes.  The
+# exact query string in the URI used doesn't matter as long as it's different.
+css_hash=`md5sum < ${dir}/css/site.css | ${AWK} '{print $1}'`
 
 contents ()
 {
@@ -92,7 +96,7 @@ cat <<EOF
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 <link rel="shortcut icon" type="image/x-icon" href="${prefix}images/archer-fish.ico" />
 <meta name="keywords" content="gdb" />
-<link rel="stylesheet" href="${prefix}css/site.css" />
+<link rel="stylesheet" href="${prefix}css/site.css?hash=${css_hash}" />
 
 <title>${title}</title>
 
@@ -120,7 +124,7 @@ cat <<EOF
 <!-- body, update above using ${prefix}index.sh -->
 EOF
 
-cat index.in | ${AWK:-awk} '
+cat index.in | ${AWK} '
 BEGIN { state = "head" }
 state == "head" && /<!-- body.*-->/ { state = "body"; next }
 state == "head" { next }
diff --git a/irc/index.html b/irc/index.html
index e3256967bc7b..53ae0de0d984 100644
--- a/irc/index.html
+++ b/irc/index.html
@@ -9,7 +9,7 @@
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 <link rel="shortcut icon" type="image/x-icon" href="../images/archer-fish.ico" />
 <meta name="keywords" content="gdb" />
-<link rel="stylesheet" href="../css/site.css" />
+<link rel="stylesheet" href="../css/site.css?hash=54990fef3ff3855a54d10cd61077e249" />
 
 <title>The GDB IRC Channel</title>
 
diff --git a/links/index.html b/links/index.html
index 68626369e247..bbbf56da18f6 100644
--- a/links/index.html
+++ b/links/index.html
@@ -9,7 +9,7 @@
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 <link rel="shortcut icon" type="image/x-icon" href="../images/archer-fish.ico" />
 <meta name="keywords" content="gdb" />
-<link rel="stylesheet" href="../css/site.css" />
+<link rel="stylesheet" href="../css/site.css?hash=54990fef3ff3855a54d10cd61077e249" />
 
 <title>Sites and links related to GDB</title>
 
diff --git a/mailing-lists/index.html b/mailing-lists/index.html
index deaf7b31dbf4..c288ada27393 100644
--- a/mailing-lists/index.html
+++ b/mailing-lists/index.html
@@ -9,7 +9,7 @@
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 <link rel="shortcut icon" type="image/x-icon" href="../images/archer-fish.ico" />
 <meta name="keywords" content="gdb" />
-<link rel="stylesheet" href="../css/site.css" />
+<link rel="stylesheet" href="../css/site.css?hash=54990fef3ff3855a54d10cd61077e249" />
 
 <title>GDB Mailing Lists</title>
 
diff --git a/mascot/index.html b/mascot/index.html
index 458f3ba74f9d..eaced56e5562 100644
--- a/mascot/index.html
+++ b/mascot/index.html
@@ -9,7 +9,7 @@
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 <link rel="shortcut icon" type="image/x-icon" href="../images/archer-fish.ico" />
 <meta name="keywords" content="gdb" />
-<link rel="stylesheet" href="../css/site.css" />
+<link rel="stylesheet" href="../css/site.css?hash=54990fef3ff3855a54d10cd61077e249" />
 
 <title>GDB's Mascot?</title>
 
diff --git a/news/index.html b/news/index.html
index dd2482d82bab..2e7997a1e7b0 100644
--- a/news/index.html
+++ b/news/index.html
@@ -9,7 +9,7 @@
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 <link rel="shortcut icon" type="image/x-icon" href="../images/archer-fish.ico" />
 <meta name="keywords" content="gdb" />
-<link rel="stylesheet" href="../css/site.css" />
+<link rel="stylesheet" href="../css/site.css?hash=54990fef3ff3855a54d10cd61077e249" />
 
 <title>GDB News</title>
 
diff --git a/news/reversible.html b/news/reversible.html
index bcaddbe571e0..b779dc396dbb 100644
--- a/news/reversible.html
+++ b/news/reversible.html
@@ -9,7 +9,7 @@
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 <link rel="shortcut icon" type="image/x-icon" href="../images/archer-fish.ico" />
 <meta name="keywords" content="gdb" />
-<link rel="stylesheet" href="../css/site.css" />
+<link rel="stylesheet" href="../css/site.css?hash=54990fef3ff3855a54d10cd61077e249" />
 
 <title>GDB and Reverse Debugging</title>
 
diff --git a/papers/index.html b/papers/index.html
index e74e8b7af68c..d04bb4276597 100644
--- a/papers/index.html
+++ b/papers/index.html
@@ -9,7 +9,7 @@
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 <link rel="shortcut icon" type="image/x-icon" href="../images/archer-fish.ico" />
 <meta name="keywords" content="gdb" />
-<link rel="stylesheet" href="../css/site.css" />
+<link rel="stylesheet" href="../css/site.css?hash=54990fef3ff3855a54d10cd61077e249" />
 
 <title>Various GDB Papers</title>
 
diff --git a/schedule/index.html b/schedule/index.html
index 843b67b1b24e..ce944bd6f812 100644
--- a/schedule/index.html
+++ b/schedule/index.html
@@ -9,7 +9,7 @@
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 <link rel="shortcut icon" type="image/x-icon" href="../images/archer-fish.ico" />
 <meta name="keywords" content="gdb" />
-<link rel="stylesheet" href="../css/site.css" />
+<link rel="stylesheet" href="../css/site.css?hash=54990fef3ff3855a54d10cd61077e249" />
 
 <title>Release schedule for GDB</title>
 
diff --git a/song/index.html b/song/index.html
index ee5b59855a45..a02d2d96dbcb 100644
--- a/song/index.html
+++ b/song/index.html
@@ -9,7 +9,7 @@
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 <link rel="shortcut icon" type="image/x-icon" href="../images/archer-fish.ico" />
 <meta name="keywords" content="gdb" />
-<link rel="stylesheet" href="../css/site.css" />
+<link rel="stylesheet" href="../css/site.css?hash=54990fef3ff3855a54d10cd61077e249" />
 
 <title>Sing along with GDB</title>
 
diff --git a/talks/index.html b/talks/index.html
index a3000bcf8e26..493d4acb688d 100644
--- a/talks/index.html
+++ b/talks/index.html
@@ -9,7 +9,7 @@
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 <link rel="shortcut icon" type="image/x-icon" href="../images/archer-fish.ico" />
 <meta name="keywords" content="gdb" />
-<link rel="stylesheet" href="../css/site.css" />
+<link rel="stylesheet" href="../css/site.css?hash=54990fef3ff3855a54d10cd61077e249" />
 
 <title>GDB Talks and Lectures</title>
 
diff --git a/testing/index.html b/testing/index.html
index 19cebd4be00c..76fe0a750974 100644
--- a/testing/index.html
+++ b/testing/index.html
@@ -9,7 +9,7 @@
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 <link rel="shortcut icon" type="image/x-icon" href="../images/archer-fish.ico" />
 <meta name="keywords" content="gdb" />
-<link rel="stylesheet" href="../css/site.css" />
+<link rel="stylesheet" href="../css/site.css?hash=54990fef3ff3855a54d10cd61077e249" />
 
 <title>GDB Test Farms</title>
 
