diff --git a/src/errors.h b/src/errors.h
index 00d395b..00e2d56 100644
--- a/src/errors.h
+++ b/src/errors.h
@@ -417,3 +417,5 @@
 	INIT(= N_("E1187: Failed to source defaults.vim"));
 EXTERN char e_cannot_open_terminal_from_command_line_window[]
 	INIT(= N_("E1188: Cannot open a terminal from the command line window"));
+EXTERN char e_cannot_use_legacy_with_command_str[]
+	INIT(= N_("E1189: Cannot use :legacy with this command: %s"));