diff --git a/modules/mol/base/src/coord_frame.hh b/modules/mol/base/src/coord_frame.hh
index b7cce0661ef615db5799e0dfe287d0d0187cb74c..e624ebf87065849c87c169249f7994a892e1bf75 100644
--- a/modules/mol/base/src/coord_frame.hh
+++ b/modules/mol/base/src/coord_frame.hh
@@ -22,6 +22,7 @@
 /*
   Authors: Marco Biasini, Niklaus Johner, Ansgar Philippsen
  */
+#include <ost/mol/module_config.hh>
 #include <boost/shared_ptr.hpp>
 #include <ost/geom/geom.hh>
 #include <ost/mol/module_config.hh>