diff --git a/thermion_dart/native/include/c_api/ThermionDartRenderThreadApi.h b/thermion_dart/native/include/c_api/ThermionDartRenderThreadApi.h
index c1c7bf23..f67097e7 100644
--- a/thermion_dart/native/include/c_api/ThermionDartRenderThreadApi.h
+++ b/thermion_dart/native/include/c_api/ThermionDartRenderThreadApi.h
@@ -91,8 +91,6 @@ namespace thermion
         void View_setBloomRenderThread(TView *tView, bool enabled, double strength, VoidCallback onComplete);
         void View_setCameraRenderThread(TView *tView, TCamera *tCamera, VoidCallback onComplete);
 
-        FilamentRenderCallback make_render_callback_fn_pointer(FilamentRenderCallback);
-
         void SceneAsset_destroyRenderThread(TSceneAsset *tSceneAsset, VoidCallback onComplete);
         void SceneAsset_createFromFilamentAssetRenderThread(
             TEngine *tEngine,