diff --git a/src/errors.h b/src/errors.h
index 6299ccd..23071e1 100644
--- a/src/errors.h
+++ b/src/errors.h
@@ -3389,3 +3389,5 @@
 EXTERN char e_object_member_is_not_writable_str[]
 	INIT(= N_("E1335: Object member is not writable: %s"));
 #endif
+EXTERN char e_internal_error_shortmess_too_long[]
+	INIT(= N_("E1336: Internal error: shortmess too long"));