diff --git a/source/sw/src/sounds.cpp b/source/sw/src/sounds.cpp
index 0e86bec25..da75ec513 100644
--- a/source/sw/src/sounds.cpp
+++ b/source/sw/src/sounds.cpp
@@ -365,6 +365,7 @@ static void DoTimedSound(AmbientSound* amb)
             }
             RestartAmbient(amb);
         }
+		amb->curIndex;
     }
 }