diff --git a/packages/common/dbp-common-demo.js b/packages/common/dbp-common-demo.js
index 4fe2c10537fc640b5e6351f72288247b6fbb3603..f9e6ac69f43615471c7a23b7cafc8dd91ab12d83 100644
--- a/packages/common/dbp-common-demo.js
+++ b/packages/common/dbp-common-demo.js
@@ -23,7 +23,7 @@ export class DbpCommonDemo extends ScopedElementsMixin(LitElement) {
         this._i18n = createInstance();
         this.lang = this._i18n.language;
         this.noAuth = false;
-        this.langFile = '';
+        this.langDir = '';
     }
 
     static get scopedElements() {
@@ -49,7 +49,7 @@ export class DbpCommonDemo extends ScopedElementsMixin(LitElement) {
         return {
             lang: {type: String},
             noAuth: {type: Boolean, attribute: 'no-auth'},
-            langFile: {type: String, attribute: 'lang-file'},
+            langDir: {type: String, attribute: 'lang-dir'},
         };
     }
 
diff --git a/toolkit-showcase/assets/common.metadata.json b/toolkit-showcase/assets/common.metadata.json
index 51e4892cb53180deb82a6224e9dd0c836c9f6452..8cad700454234b68cd4b1e0c803d4be0d77daa39 100644
--- a/toolkit-showcase/assets/common.metadata.json
+++ b/toolkit-showcase/assets/common.metadata.json
@@ -14,5 +14,5 @@
         "de": "Gemeinsame Web Components",
         "en": "Common web components"
     },
-    "subscribe": "lang,entry-point-url,lang-file"
+    "subscribe": "lang,entry-point-url,lang-dir"
 }
diff --git a/toolkit-showcase/src/dbp-common-demo-activity.js b/toolkit-showcase/src/dbp-common-demo-activity.js
index 6735845541387b0098d6f61bf329470508bf84c3..2f959f9a7ee9886da423cdd9b444ea17ab58a477 100644
--- a/toolkit-showcase/src/dbp-common-demo-activity.js
+++ b/toolkit-showcase/src/dbp-common-demo-activity.js
@@ -13,7 +13,7 @@ class DbpCommonDemoActivity extends ScopedElementsMixin(AdapterLitElement) {
         super();
         this.lang = 'en';
         this.entryPointUrl = '';
-        this.langFile = '';
+        this.langDir = '';
     }
 
     static get scopedElements() {
@@ -26,7 +26,7 @@ class DbpCommonDemoActivity extends ScopedElementsMixin(AdapterLitElement) {
         return {
             ...super.properties,
             lang: {type: String},
-            langFile: {type: String, attribute: 'lang-file'},
+            langDir: {type: String, attribute: 'lang-dir'},
             entryPointUrl: {type: String, attribute: 'entry-point-url'},
         };
     }
@@ -65,7 +65,7 @@ class DbpCommonDemoActivity extends ScopedElementsMixin(AdapterLitElement) {
             <dbp-common-demo
                 id="demo"
                 lang="${this.lang}"
-                lang-file="${this.langFile}"
+                lang-dir="${this.langDir}"
                 entry-point-url="${this.entryPointUrl}"></dbp-common-demo>
         `;
     }