diff --git a/app/assets/javascripts/discourse/lib/translation-plugin.js b/app/assets/javascripts/discourse/lib/translation-plugin.js
index 0fb923c52e..09c0e8b84d 100644
--- a/app/assets/javascripts/discourse/lib/translation-plugin.js
+++ b/app/assets/javascripts/discourse/lib/translation-plugin.js
@@ -20,6 +20,10 @@ class TranslationPlugin extends Plugin {
   }
 
   replaceMF(formats, input, path = []) {
+    if (!input) {
+      return;
+    }
+
     Object.keys(input).forEach((key) => {
       let value = input[key];