diff --git a/bower.json b/bower.json
index 9c78e61..e768e61 100644
--- a/bower.json
+++ b/bower.json
@@ -1,7 +1,7 @@
 {
   "name": "strolch-wc-localize-behavior",
   "description": "Strolch Polymer Localization Behavior extension",
-  "version": "1.1.17",
+  "version": "1.1.18",
   "authors": [
     "Franz Nieschalk",
     "Robert von Burg"
diff --git a/strolch-wc-localize-behavior.html b/strolch-wc-localize-behavior.html
index d24885b..8150611 100644
--- a/strolch-wc-localize-behavior.html
+++ b/strolch-wc-localize-behavior.html
@@ -21,7 +21,7 @@
                 return function () {
                     var key = arguments[0];
                     if(!key)
-                        return "!!no-key!!";
+                        return;
                     if (!resources || !language || !resources[language])
                         return key;