diff --git a/libs/evoral/evoral/midi_util.h b/libs/evoral/evoral/midi_util.h
index 2193e4c4b1..3d6ac095bb 100644
--- a/libs/evoral/evoral/midi_util.h
+++ b/libs/evoral/evoral/midi_util.h
@@ -84,7 +84,7 @@ midi_event_size(uint8_t* buffer)
 	
 	if (status == MIDI_CMD_COMMON_SYSEX) {
 		int end;
-		for (end = 1; buffer[end] != MIDI_CMD_COMMON_SYSEX_END; end++);
+		for (end = 1; buffer[end] != MIDI_CMD_COMMON_SYSEX_END; end++) {}
 		assert(buffer[end] == MIDI_CMD_COMMON_SYSEX_END);
 		return end + 1;
 	} else {
diff --git a/libs/evoral/test/sequence.hpp b/libs/evoral/test/sequence.hpp
index beb5dc1025..500ab8b7cf 100644
--- a/libs/evoral/test/sequence.hpp
+++ b/libs/evoral/test/sequence.hpp
@@ -75,7 +75,7 @@ public:
 	sigc::signal<uint32_t, Time, EventType, uint32_t, const uint8_t*> writing;
 	
 	virtual uint32_t write(Time time, EventType type, uint32_t size, const uint8_t* buf) {
-		writing(time, type, size, buf);
+		return writing(time, type, size, buf);
 	}
 };