diff --git a/modules/robot/src/wireframe-simulator/vpArit.cpp b/modules/robot/src/wireframe-simulator/vpArit.cpp
index 6117160507..cc6137772b 100644
--- a/modules/robot/src/wireframe-simulator/vpArit.cpp
+++ b/modules/robot/src/wireframe-simulator/vpArit.cpp
@@ -35,8 +35,8 @@
 #include <stdio.h>                                  // for fprintf, stderr
 #include <string.h>                                 // for memmove
 #include <visp3/core/vpConfig.h>                    // for BEGIN_VISP_NAMESPACE
+#include <visp3/core/vpMath.h>                      // for M_PI_2 under Windows
 #include <visp3/robot/vpWireFrameSimulatorTypes.h>  // for Matrix, Point3f
-#include <visp3/robot/vpMath.h>                     // for M_PI_2 under Windows
 #include "vpMy.h"                                   // for M_EPSILON, FABS
 #include "vpArit.h"