diff --git a/sys/security/mac_ddb/mac_ddb.c b/sys/security/mac_ddb/mac_ddb.c
--- a/sys/security/mac_ddb/mac_ddb.c
+++ b/sys/security/mac_ddb/mac_ddb.c
@@ -185,7 +185,7 @@
 	struct rman *rm;
 
 	TAILQ_FOREACH(rm, &rman_head, rm_link) {
-		if ((void *)rm == (void *)rm)
+		if ((void *)rm == (void *)addr)
 			return (0);
 	}