diff --git a/platform/darwin/bazel/files.bzl b/platform/darwin/bazel/files.bzl
index 1b2effcd553..8776c4c0fd2 100644
--- a/platform/darwin/bazel/files.bzl
+++ b/platform/darwin/bazel/files.bzl
@@ -24,7 +24,7 @@ MLN_GLTF_SOURCE = [
     "src/gltf/GLTFMTLRenderItem.h",
     "src/gltf/GLTFMTLRenderItem.m",
     "src/gltf/GLTFRenderer.hpp",
-    "src/gltf/GLTFRenderer.mm",
+    "src/gltf/GLTFRenderer.cpp",
     "src/gltf/MetalRenderer+GLTFAsset.mm",
     "src/gltf/gltfkit/GLTFAsset.h",
     "src/gltf/gltfkit/GLTFAsset.m",
diff --git a/platform/darwin/src/gltf/GLTFRenderer.mm b/platform/darwin/src/gltf/GLTFRenderer.cpp
similarity index 100%
rename from platform/darwin/src/gltf/GLTFRenderer.mm
rename to platform/darwin/src/gltf/GLTFRenderer.cpp