diff --git a/src/lib/rc/dsm.c b/src/lib/rc/dsm.c
index efd2015862..e85cb5ba85 100644
--- a/src/lib/rc/dsm.c
+++ b/src/lib/rc/dsm.c
@@ -692,8 +692,10 @@ dsm_parse(uint64_t now, uint8_t *frame, unsigned len, uint16_t *values,
 
 	if (decode_ret) {
 		/* num values should not decrease, only increase */
-		if (dsm_chan_count > *num_values)
+		if (dsm_chan_count > *num_values) {
 			*num_values = dsm_chan_count;
+		}
+
 		memcpy(&values[0], &dsm_chan_buf[0], dsm_chan_count * sizeof(dsm_chan_buf[0]));
 #ifdef DSM_DEBUG