diff --git a/thermion_dart/native/include/c_api/ThermionDartRenderThreadApi.h b/thermion_dart/native/include/c_api/ThermionDartRenderThreadApi.h
index 18d0a7a9..f52663d6 100644
--- a/thermion_dart/native/include/c_api/ThermionDartRenderThreadApi.h
+++ b/thermion_dart/native/include/c_api/ThermionDartRenderThreadApi.h
@@ -95,7 +95,7 @@ namespace thermion
         EMSCRIPTEN_KEEPALIVE void SceneManager_destroyAssetRenderThread(TSceneManager *tSceneManager, TSceneAsset *sceneAsset, void (*callback)());
         EMSCRIPTEN_KEEPALIVE void SceneManager_destroyAssetsRenderThread(TSceneManager *tSceneManager, void (*callback)());
         EMSCRIPTEN_KEEPALIVE void SceneManager_destroyLightsRenderThread(TSceneManager *tSceneManager, void (*callback)());
-        EMSCRIPTEN_KEEPALIVE EntityId SceneManager_addLightRenderThread(
+        EMSCRIPTEN_KEEPALIVE void SceneManager_addLightRenderThread(
             TSceneManager *tSceneManager,
             uint8_t type,
             float colour,
diff --git a/thermion_dart/native/src/c_api/ThermionDartRenderThreadApi.cpp b/thermion_dart/native/src/c_api/ThermionDartRenderThreadApi.cpp
index b57f0924..c8af68ea 100644
--- a/thermion_dart/native/src/c_api/ThermionDartRenderThreadApi.cpp
+++ b/thermion_dart/native/src/c_api/ThermionDartRenderThreadApi.cpp
@@ -622,7 +622,7 @@ extern "C"
     return nullptr;
   }
 
-  EMSCRIPTEN_KEEPALIVE EntityId SceneManager_addLightRenderThread(
+  EMSCRIPTEN_KEEPALIVE void SceneManager_addLightRenderThread(
             TSceneManager *tSceneManager,
             uint8_t type,
             float colour,