diff --git a/source/MaterialXGenMdl/MdlShaderGenerator.cpp b/source/MaterialXGenMdl/MdlShaderGenerator.cpp
index 8d8e81b596..1bc65d5cc4 100644
--- a/source/MaterialXGenMdl/MdlShaderGenerator.cpp
+++ b/source/MaterialXGenMdl/MdlShaderGenerator.cpp
@@ -23,7 +23,6 @@
 #include <MaterialXGenShader/ShaderStage.h>
 #include <MaterialXGenShader/Nodes/ClosureCompoundNode.h>
 #include <MaterialXGenShader/Nodes/ClosureSourceCodeNode.h>
-#include <MaterialXGenShader/Nodes/ClosureSourceCodeNode.h>
 #include <MaterialXGenShader/Util.h>
 
 MATERIALX_NAMESPACE_BEGIN