diff --git a/src/Mod/Robot/App/kdl_cp/tree.hpp b/src/Mod/Robot/App/kdl_cp/tree.hpp
index 13ff496c0fb4..0ebbe43e0297 100644
--- a/src/Mod/Robot/App/kdl_cp/tree.hpp
+++ b/src/Mod/Robot/App/kdl_cp/tree.hpp
@@ -22,7 +22,8 @@
 #ifndef KDL_TREE_HPP
 #define KDL_TREE_HPP
 
-#include "config.h"
+// This file comes along with oce but not with occ.
+//#include "config.h"
 
 #include "segment.hpp"
 #include "chain.hpp"