diff --git a/src/engine/platform/msm5232.cpp b/src/engine/platform/msm5232.cpp
index 4a8107289..e4564134e 100644
--- a/src/engine/platform/msm5232.cpp
+++ b/src/engine/platform/msm5232.cpp
@@ -56,10 +56,10 @@ void DivPlatformMSM5232::acquire(short** buf, size_t len) {
 
     for (int i=0; i<8; i++) {
       int o=(
-        ((regPool[12+(i>>4)]&1)?((msm->vo16[i]*partVolume[3+(i&4)])>>8):0)+
-        ((regPool[12+(i>>4)]&2)?((msm->vo8[i]*partVolume[2+(i&4)])>>8):0)+
-        ((regPool[12+(i>>4)]&4)?((msm->vo4[i]*partVolume[1+(i&4)])>>8):0)+
-        ((regPool[12+(i>>4)]&8)?((msm->vo2[i]*partVolume[i&4])>>8):0)
+        ((regPool[12+(i>>2)]&1)?((msm->vo16[i]*partVolume[3+(i&4)])>>8):0)+
+        ((regPool[12+(i>>2)]&2)?((msm->vo8[i]*partVolume[2+(i&4)])>>8):0)+
+        ((regPool[12+(i>>2)]&4)?((msm->vo4[i]*partVolume[1+(i&4)])>>8):0)+
+        ((regPool[12+(i>>2)]&8)?((msm->vo2[i]*partVolume[i&4])>>8):0)
       )<<2;
       oscBuf[i]->data[oscBuf[i]->needle++]=CLAMP(o,-32768,32767);
     }