--- a/src/fluid_dll.c
+++ b/src/fluid_dll.c
@@ -76,7 +76,7 @@ void* fluid_get_hinstance(void)
   return (void*) fluid_hinstance;
 }
 
-static long FAR PASCAL fluid_win32_wndproc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
+static LRESULT CALLBACK fluid_win32_wndproc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 {
   switch (message) {
   case WM_CREATE: