diff --git a/package.json b/package.json
index 6a96b48..84d9b13 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@grandlinex/bundle-multilang",
-  "version": "0.32.0",
+  "version": "0.32.1",
   "description": "",
   "type": "module",
   "exports": {
diff --git a/src/class/GLang.ts b/src/class/GLang.ts
index 767b385..d62b56a 100644
--- a/src/class/GLang.ts
+++ b/src/class/GLang.ts
@@ -6,12 +6,15 @@ export default class GLang {
 
   map: Map<string, string>;
 
+  missing: Set<string>;
+
   log?: CoreLogChannel;
 
   constructor(langDat: LangData | null, log?: CoreLogChannel) {
     this.log = log;
     this.code = '';
     this.map = new CMap<string, string>();
+    this.missing = new Set<string>();
     if (langDat) {
       this.loadLang(langDat);
     }
@@ -43,6 +46,7 @@ export default class GLang {
       console.warn(`Missing translation: ${key}`);
     }
 
+    this.missing.add(key);
     return key;
   }
 }