diff --git a/Device/Beam/Beam.cpp b/Device/Beam/Beam.cpp
index 06042f1142f2deb30cdb2e47717266ad3de66388..8dd9605cf36efbecca0a72d54f7ca5c53d981c6b 100644
--- a/Device/Beam/Beam.cpp
+++ b/Device/Beam/Beam.cpp
@@ -13,12 +13,12 @@
 //  ************************************************************************************************
 
 #include "Device/Beam/Beam.h"
-#include <numbers>
-using std::numbers::pi;
 #include "Base/Spin/SpinMatrix.h"
 #include "Base/Util/Assert.h"
 #include "Base/Vector/GisasDirection.h"
 #include "Device/Beam/IFootprint.h"
+#include <numbers>
+using std::numbers::pi;
 
 //... Constructors, destructors: