diff --git a/DDCAD/src/ASSIMPWriter.cpp b/DDCAD/src/ASSIMPWriter.cpp
index 972239eb136566fc6b44a65b539022dfa9e13937..33c8bae010301f5cf7800c602fd1e7d53e16c8b2 100644
--- a/DDCAD/src/ASSIMPWriter.cpp
+++ b/DDCAD/src/ASSIMPWriter.cpp
@@ -29,7 +29,6 @@
 #include <TGeoMatrix.h>
 #include <TClass.h>
 #include <CsgOps.h>
-#include <GL/glu.h>
 
 /// C/C++ include files
 #include <set>