diff --git a/scripts/github/update-gh-pages.sh b/scripts/github/update-gh-pages.sh
index 94d53a452..e6edd19fb 100755
--- a/scripts/github/update-gh-pages.sh
+++ b/scripts/github/update-gh-pages.sh
@@ -105,7 +105,7 @@ site_subdir=${site_subdir:-master}
 
 # Check if this ref is for a released version
 if [ "$site_subdir" != "master" ]; then
-    _base_tag=`git describe --abbrev=0 || :`
+    _base_tag=`git describe --abbrev=0 --match "v*" || :`
     case "$_base_tag" in
         $site_subdir*)
             ;;