diff --git a/src/engine/platform/pcspkr.cpp b/src/engine/platform/pcspkr.cpp
index 144ec775f..76d6612ab 100644
--- a/src/engine/platform/pcspkr.cpp
+++ b/src/engine/platform/pcspkr.cpp
@@ -220,6 +220,7 @@ void DivPlatformPCSpeaker::reset() {
   on=false;
   freq=0;
   pos=0;
+  flip=false;
 
   memset(regPool,0,2);
 }