diff --git a/locales/en_US.json b/locales/en_US.json
index 5d36927..4a96b5f 100644
--- a/locales/en_US.json
+++ b/locales/en_US.json
@@ -122,5 +122,7 @@
   "unofficial_source_edit_dialog_add_edit": "Save Changes",
   "unofficial_source_edit_dialog_heading": "Editing",
   "unofficial_source_add_legacy_options_prefrencesgroup_title": "Options",
-  "unofficial_source_add_is_legacy_source_label_label": "Is A Source Repository"
+  "unofficial_source_add_is_legacy_source_label_label": "Is A Source Repository",
+  "apt_src_create_error_dialog_heading": "Could Not Save Changes: Error",
+  "apt_src_create_error_dialog_ok_label": "OK"
 } 
\ No newline at end of file