diff --git a/audio/softsynth/fmtowns_pc98/towns_pc98_fmsynth.cpp b/audio/softsynth/fmtowns_pc98/towns_pc98_fmsynth.cpp
index 8164a78125e..14f7287ddc6 100644
--- a/audio/softsynth/fmtowns_pc98/towns_pc98_fmsynth.cpp
+++ b/audio/softsynth/fmtowns_pc98/towns_pc98_fmsynth.cpp
@@ -967,8 +967,7 @@ TownsPC98_FmSynth::TownsPC98_FmSynth(Audio::Mixer *mixer, EmuType type) :
 	memset(&_timers[0], 0, sizeof(ChipTimer));
 	memset(&_timers[1], 0, sizeof(ChipTimer));
 
-	memset(_registers[0], 0, 255);
-	memset(_registers[1], 0, 255);
+	memset(_registers, 0, sizeof(_registers));
 
 	_timerProcIdle = new ChipTimerProc(this, &TownsPC98_FmSynth::idleTimerCallback);
 	_timerProcA = new ChipTimerProc(this, &TownsPC98_FmSynth::timerCallbackA);
@@ -1056,8 +1055,7 @@ void TownsPC98_FmSynth::reset() {
 		_chanInternal[i].updateEnvelopeParameters = false;
 	}
 
-	memset(_registers[0], 0, 255);
-	memset(_registers[1], 0, 255);
+	memset(_registers, 0, sizeof(_registers));
 
 #ifdef ENABLE_SNDTOWNS98_WAITCYCLES
 	_waitCycleElapsedWrites.clear();