diff --git a/src/engine/directsounddevicefinder.cpp b/src/engine/directsounddevicefinder.cpp
index 2acf14b4..2ff6b85e 100644
--- a/src/engine/directsounddevicefinder.cpp
+++ b/src/engine/directsounddevicefinder.cpp
@@ -43,7 +43,7 @@ QList<DeviceFinder::Device> DirectSoundDeviceFinder::ListDevices() {
   return state.devices;
 }
 
-BOOL DirectSoundDeviceFinder::EnumerateCallback(LPGUID guid, LPCSTR description, LPCSTR module, LPVOID state_voidptr) {
+BOOL CALLBACK DirectSoundDeviceFinder::EnumerateCallback(LPGUID guid, LPCSTR description, LPCSTR module, LPVOID state_voidptr) {
 
   Q_UNUSED(module);
 
diff --git a/src/engine/directsounddevicefinder.h b/src/engine/directsounddevicefinder.h
index baf8a6ee..14b4173f 100644
--- a/src/engine/directsounddevicefinder.h
+++ b/src/engine/directsounddevicefinder.h
@@ -40,7 +40,7 @@ class DirectSoundDeviceFinder : public DeviceFinder {
     QList<Device> devices;
   };
 
-  static BOOL EnumerateCallback(LPGUID guid, LPCSTR description, LPCSTR module, LPVOID state_voidptr)
+  static BOOL CALLBACK EnumerateCallback(LPGUID guid, LPCSTR description, LPCSTR module, LPVOID state_voidptr)
 #ifdef _MSC_VER
     ;
 #else