diff --git a/src/errors.h b/src/errors.h
index b2f6a55..c27da7c 100644
--- a/src/errors.h
+++ b/src/errors.h
@@ -347,3 +347,5 @@
 	INIT(= N_("E1154: Divide by zero"));
 EXTERN char e_cannot_define_autocommands_for_all_events[]
 	INIT(= N_("E1155: Cannot define autocommands for ALL events"));
+EXTERN char e_cannot_change_arglist_recursively[]
+	INIT(= N_("E1156: Cannot change the argument list recursively"));