diff --git a/utils/bump.sh b/utils/bump.sh
index ef8d36d..e4f4578 100644
--- a/utils/bump.sh
+++ b/utils/bump.sh
@@ -38,7 +38,7 @@ for manifest_path in "${MANIFEST_PATHS[@]}" ; do
 
     # Check latest commit for extension changes if forcible platform flag not set
     platform_manifest_path=$(dirname "$manifest_path" | sed 's|^\./||')
-    if [ "$chromium_only" != true ] && [ "$ff_only" != true ] ; then
+    if [[ ! "${chromium_only} ${ff_only}" =~ "true" ]] ; then
         echo "Checking last commit details for $platform_manifest_path..."
         latest_platform_commit_msg=$(git log -1 --format=%s -- "$platform_manifest_path")
         echo -e "${DG}${latest_platform_commit_msg}${NC}\n"