diff --git a/src/d3d9/d3d9_swapchain.cpp b/src/d3d9/d3d9_swapchain.cpp
index e83da4f78..d2c7a0b73 100644
--- a/src/d3d9/d3d9_swapchain.cpp
+++ b/src/d3d9/d3d9_swapchain.cpp
@@ -71,7 +71,7 @@ namespace dxvk {
   }
 
 
-  static LRESULT CALLBACK D3D9WindowProc(HWND window, UINT message, WPARAM wparam, LPARAM lparam) {
+  LRESULT CALLBACK D3D9WindowProc(HWND window, UINT message, WPARAM wparam, LPARAM lparam) {
     if (message == WM_NCCALCSIZE && wparam == TRUE)
       return 0;