diff --git a/tools/php_api_ref/phpdoc.sh b/tools/php_api_ref/phpdoc.sh
index fa6e39a36a..4a6770b695 100755
--- a/tools/php_api_ref/phpdoc.sh
+++ b/tools/php_api_ref/phpdoc.sh
@@ -85,7 +85,7 @@ fi;
 if [[ "$DXP_VERSION" == *".x-dev" ]]; then
   GIT_REF=$BASE_DXP_BRANCH;
 else
-  GIT_REF="v$DXP_VERSION";
+  GIT_REF="v${DXP_VERSION#v}";
 fi
 
 if [ 0 -eq $DXP_ALREADY_EXISTS ]; then