diff --git a/src/experimental/filament/CMakeLists.txt b/src/experimental/filament/CMakeLists.txt
index fa2081b5..8fe1ecac 100644
--- a/src/experimental/filament/CMakeLists.txt
+++ b/src/experimental/filament/CMakeLists.txt
@@ -44,6 +44,8 @@ target_sources(${MUJOCO_FILAMENT_TARGET_NAME}
         filament/math_util.h
         filament/mesh.cc
         filament/mesh.h
+        filament/mjr_filament_renderer.cc
+        filament/mjr_filament_renderer.h
         filament/model_objects.cc
         filament/model_objects.h
         filament/model_util.h