diff --git a/reactos/dll/directx/wine/wined3d/wined3d_private.h b/reactos/dll/directx/wine/wined3d/wined3d_private.h
index 5c96d764389..9a5c7c445b3 100644
--- a/reactos/dll/directx/wine/wined3d/wined3d_private.h
+++ b/reactos/dll/directx/wine/wined3d/wined3d_private.h
@@ -1029,7 +1029,7 @@ void wined3d_event_query_destroy(struct wined3d_event_query *query) DECLSPEC_HID
 enum wined3d_event_query_result wined3d_event_query_test(struct wined3d_event_query *query, IWineD3DDeviceImpl *device) DECLSPEC_HIDDEN;
 enum wined3d_event_query_result wined3d_event_query_finish(struct wined3d_event_query *query, IWineD3DDeviceImpl *device) DECLSPEC_HIDDEN;
 void wined3d_event_query_issue(struct wined3d_event_query *query, IWineD3DDeviceImpl *device) DECLSPEC_HIDDEN;
-HRESULT wined3d_event_query_supported(const struct wined3d_gl_info *gl_info) DECLSPEC_HIDDEN;
+BOOL wined3d_event_query_supported(const struct wined3d_gl_info *gl_info) DECLSPEC_HIDDEN;
 
 struct wined3d_context
 {