diff --git a/src/igl/opengl/glx/Context.cpp b/src/igl/opengl/glx/Context.cpp
index 26a8b4bea5..9eea9af4eb 100644
--- a/src/igl/opengl/glx/Context.cpp
+++ b/src/igl/opengl/glx/Context.cpp
@@ -5,6 +5,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+// @fb-only
+
 #include <igl/opengl/glx/Context.h>
 
 #include <igl/opengl/Texture.h>