diff --git a/public/scripts/localization.js b/public/scripts/localization.js
index 1619676..8f30f26 100644
--- a/public/scripts/localization.js
+++ b/public/scripts/localization.js
@@ -63,7 +63,7 @@ class Localization {
             if (attr === "text") {
                 element.innerText = Localization.getTranslation(key);
             } else {
-                element.attr = Localization.getTranslation(key, attr);
+                element.setAttribute(attr, Localization.getTranslation(key, attr));
             }
         }
 
diff --git a/public_included_ws_fallback/scripts/localization.js b/public_included_ws_fallback/scripts/localization.js
index 1619676..8f30f26 100644
--- a/public_included_ws_fallback/scripts/localization.js
+++ b/public_included_ws_fallback/scripts/localization.js
@@ -63,7 +63,7 @@ class Localization {
             if (attr === "text") {
                 element.innerText = Localization.getTranslation(key);
             } else {
-                element.attr = Localization.getTranslation(key, attr);
+                element.setAttribute(attr, Localization.getTranslation(key, attr));
             }
         }