diff --git a/frontend/src/i18n/is.json b/frontend/src/i18n/is.json
index 65a5eb00..431f21ef 100644
--- a/frontend/src/i18n/is.json
+++ b/frontend/src/i18n/is.json
@@ -158,6 +158,7 @@
     "video": "Myndbönd"
   },
   "settings": {
+    "aceEditorTheme": "Ace editor theme",
     "admin": "Stjórnandi",
     "administrator": "Stjórnandi",
     "allowCommands": "Senda skipanir",