diff --git a/format.c b/format.c
index 40c495ff7..c6b734d56 100644
--- a/format.c
+++ b/format.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: format.c,v 1.410 2026/07/29 20:43:20 nicm Exp $ */
+/* $OpenBSD: format.c,v 1.411 2026/08/05 07:27:45 nicm Exp $ */
 
 /*
  * Copyright (c) 2011 Nicholas Marriott <nicholas.marriott@gmail.com>
@@ -4182,6 +4182,8 @@ format_log_debug_cb(const char *key, const char *value, void *arg)
 void
 format_log_debug(struct format_tree *ft, const char *prefix)
 {
+	if (log_get_level() == 0)
+		return;
 	format_each(ft, format_log_debug_cb, (void *)prefix);
 }