diff --git a/misc/tools.func b/misc/tools.func
index f1aa7a8e7..ba474dbb7 100644
--- a/misc/tools.func
+++ b/misc/tools.func
@@ -854,9 +854,9 @@ function fetch_and_deploy_gh_release() {
     assets=$(echo "$json" | jq -r '.assets[].browser_download_url')
 
     # If explicit filename pattern is provided (param $6), match that first
-    if [[ -n "$6" ]]; then
+    if [[ -n "$asset_pattern" ]]; then
       for u in $assets; do
-        [[ "$u" =~ $6 || "$u" == *"$6" ]] && url_match="$u" && break
+        [[ "$u" =~ $asset_pattern || "$u" == *"$asset_pattern" ]] && url_match="$u" && break
       done
     fi