diff --git a/menu.c b/menu.c
index 7468139..694d457 100644
--- a/menu.c
+++ b/menu.c
@@ -601,7 +601,7 @@ menuq_add(struct menu_q *mq, void *ctx, const char *fmt, ...)
 	mi->ctx = ctx;
 
 	va_start(ap, fmt);
-	(void)vsnprintf(mi->text, sizeof(mi->text), fmt, ap);
+	(void)vsnprintf(mi->text, sizeof(mi->text), fmt ? fmt : "", ap);
 	va_end(ap);
 
 	TAILQ_INSERT_TAIL(mq, mi, entry);