diff --git a/sndiod/dev.c b/sndiod/dev.c
index 6285dd8..ac8110c 100644
--- a/sndiod/dev.c
+++ b/sndiod/dev.c
@@ -433,8 +433,9 @@ dev_midi_omsg(void *arg, unsigned char *msg, int len)
 	switch (x->type) {
 	case SYSEX_TYPE_RT:
 		if (x->id0 == SYSEX_CONTROL && x->id1 == SYSEX_MASTER) {
-			if (len == SYSEX_SIZE(master))
+			if (len == SYSEX_SIZE(master)) {
 				dev_master(d, x->u.master.coarse);
+			}
 			return;
 		}
 		if (x->id0 != SYSEX_MMC)