diff --git a/06-install-frontend.sh b/06-install-frontend.sh
index e2323c2..d9d9444 100755
--- a/06-install-frontend.sh
+++ b/06-install-frontend.sh
@@ -78,14 +78,13 @@ case "$TARGET" in
     echo -e "  ${CYAN}./deploy-test/07-start-frontend.sh${NC}"
     ;;
   pc|meetingh5|h5|cms|build-cms|build-down)
-    local PM
     case "$TARGET" in
-      pc)         PM="yarn" ;;
-      cms|build-cms) PM="pnpm" ;;
-      *)          PM="npm" ;;
+      pc)         _PM="yarn" ;;
+      cms|build-cms) _PM="pnpm" ;;
+      *)          _PM="npm" ;;
     esac
     step "安装 $TARGET 依赖"
-    _install "$TARGET" "$TARGET" "$PM"
+    _install "$TARGET" "$TARGET" "$_PM"
     ;;
   *)
     error "未知项目: $TARGET"