diff --git a/sys/dev/mps/mps_sas.c b/sys/dev/mps/mps_sas.c
index c77f8a4066d..6e5252bec1d 100644
--- a/sys/dev/mps/mps_sas.c
+++ b/sys/dev/mps/mps_sas.c
@@ -308,7 +308,7 @@ mpssas_log_command(struct mps_command *cm, u_int level, const char *fmt, ...)
 		return;
 
 	/* No need to be in here if debugging isn't enabled */
-	if (cm->cm_sc->mps_debug & level) == 0)
+	if ((cm->cm_sc->mps_debug & level) == 0)
 		return;
 
 	sbuf_new(&sb, str, sizeof(str), 0);