diff --git a/source/MaterialXContrib/MaterialXMaya/Plugin.cpp b/source/MaterialXContrib/MaterialXMaya/Plugin.cpp
index 5bc68df24b..b1c864cc61 100644
--- a/source/MaterialXContrib/MaterialXMaya/Plugin.cpp
+++ b/source/MaterialXContrib/MaterialXMaya/Plugin.cpp
@@ -6,12 +6,8 @@
 #include "ShadingNodeOverrides.h"
 
 #include <maya/MFnPlugin.h>
-#include <maya/MDGMessage.h>
 #include <maya/MDrawRegistry.h>
 #include <maya/MGlobal.h>
-#include <maya/MIOStream.h>
-#include <maya/MHWShaderSwatchGenerator.h>
-#include <maya/MViewport2Renderer.h>
 #include <maya/MFragmentManager.h>
 
 #include <unordered_set>