diff --git a/dlls/wined3d/wined3d_private.h b/dlls/wined3d/wined3d_private.h
index 34a8eb22b6b..cfb6e717478 100644
--- a/dlls/wined3d/wined3d_private.h
+++ b/dlls/wined3d/wined3d_private.h
@@ -995,7 +995,7 @@ 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
 {