diff --git a/windows/sound.h b/windows/sound.h
index 4448bdda..cc2feaa0 100755
--- a/windows/sound.h
+++ b/windows/sound.h
@@ -70,11 +70,10 @@ public:
     std::string  SetDev ( const int iNewDev );
     int          GetDev() { return lCurDev; }
 
-    int          GetActualBufferSize ( const int iDesiredBufferSizeMono );
-
 protected:
     bool         LoadAndInitializeFirstValidDriver();
     std::string  LoadAndInitializeDriver ( int iIdx );
+    int          GetActualBufferSize ( const int iDesiredBufferSizeMono );
     std::string  CheckDeviceCapabilities();
 
     // audio hardware buffer info