diff --git a/QP_solver/test/QP_solver/master_mps_to_derivatives.cpp b/QP_solver/test/QP_solver/master_mps_to_derivatives.cpp
index b0af787b72e..ad6fd7abc89 100644
--- a/QP_solver/test/QP_solver/master_mps_to_derivatives.cpp
+++ b/QP_solver/test/QP_solver/master_mps_to_derivatives.cpp
@@ -32,7 +32,9 @@
 #include <CGAL/QP_models.h>
 #include <CGAL/QP_functions.h>
 
+#ifdef CGAL_USE_BOOST_MP
 #include <CGAL/boost_mp.h>
+#endif
 //Currently already included in boost_mp.h
 //#ifdef CGAL_USE_BOOST_MP
 //# include <boost/multiprecision/cpp_int.hpp>