diff --git a/src/engine/platform/sid3.cpp b/src/engine/platform/sid3.cpp
index f397d0679..c670d3ff2 100644
--- a/src/engine/platform/sid3.cpp
+++ b/src/engine/platform/sid3.cpp
@@ -938,7 +938,7 @@ int DivPlatformSID3::dispatch(DivCommand c) {
         if (!chan[c.chan].std.vol.has) {
           chan[c.chan].outVol=c.value;
           chan[c.chan].vol=chan[c.chan].outVol;
-          rWrite(c.chan*7+3,(chan[c.chan].duty>>8) | (chan[c.chan].vol << 4));
+          rWrite(SID3_REGISTER_ADSR_VOL + c.chan * SID3_REGISTERS_PER_CHANNEL, chan[c.chan].vol);
         }
       }
       break;