diff --git a/app/src/main/res/values-cy/strings.xml b/app/src/main/res/values-cy/strings.xml
index 659a209a3..1d92aea17 100644
--- a/app/src/main/res/values-cy/strings.xml
+++ b/app/src/main/res/values-cy/strings.xml
@@ -1143,4 +1143,5 @@
     <string name="add_photo_indication_pixelfed">Accepted Formats: jpeg, png, gif  \n\nMax File Size: 15 MB  \n\nAlbums can contain up to 4 photos or videos</string>
     <string name="upload_media">Upload media</string>
     <string name="pixelfed_compose_placeholder">Add an optional caption</string>
+    <string name="long_api_error">The app received a very long error message from the API %1$s</string>
 </resources>