diff --git a/src/engine/playback.cpp b/src/engine/playback.cpp
index f2c9098c..4d9a4e24 100644
--- a/src/engine/playback.cpp
+++ b/src/engine/playback.cpp
@@ -1744,17 +1744,17 @@ void DivEngine::nextBuf(float** in, float** out, int inChans, int outChans, unsi
 
           switch (destSubPort&3) {
             case 0:
-              vol*=MIN(1.0f,1.0f-song.systemPan[srcPortSet])*MIN(1.0f,1.0f-song.systemPanFR[srcPortSet]);
-              break;
-            case 1:
-              vol*=MIN(1.0f,1.0f+song.systemPan[srcPortSet])*MIN(1.0f,1.0f-song.systemPanFR[srcPortSet]);
-              break;
-            case 2:
               vol*=MIN(1.0f,1.0f-song.systemPan[srcPortSet])*MIN(1.0f,1.0f+song.systemPanFR[srcPortSet]);
               break;
-            case 3:
+            case 1:
               vol*=MIN(1.0f,1.0f+song.systemPan[srcPortSet])*MIN(1.0f,1.0f+song.systemPanFR[srcPortSet]);
               break;
+            case 2:
+              vol*=MIN(1.0f,1.0f-song.systemPan[srcPortSet])*MIN(1.0f,1.0f-song.systemPanFR[srcPortSet]);
+              break;
+            case 3:
+              vol*=MIN(1.0f,1.0f+song.systemPan[srcPortSet])*MIN(1.0f,1.0f-song.systemPanFR[srcPortSet]);
+              break;
           }
 
           for (size_t j=0; j<size; j++) {