diff --git a/app/src/main/res/values-cy/strings.xml b/app/src/main/res/values-cy/strings.xml
index 39a6660e..74931cd3 100644
--- a/app/src/main/res/values-cy/strings.xml
+++ b/app/src/main/res/values-cy/strings.xml
@@ -438,4 +438,5 @@
     <string name="unfollow_succeeded">Dad-ddilyn</string>
     <string name="boost">Hybu</string>
     <string name="error_response">Gwall.</string>
+    <string name="default_">Diofyn</string>
 </resources>
\ No newline at end of file