diff --git a/source/geometry/solids/CSG/src/G4Box.cc b/source/geometry/solids/CSG/src/G4Box.cc
index abefea70cb594ebf5048a4247ee0b02f1d990bc6..e45fff15df0fc69ba7e7c68cc7dccf26e4dae2be 100644
--- a/source/geometry/solids/CSG/src/G4Box.cc
+++ b/source/geometry/solids/CSG/src/G4Box.cc
@@ -41,6 +41,7 @@
 //  18.04.17 - E.Tcherniaev: complete revision, speed-up
 // --------------------------------------------------------------------
 
+
 #include "G4Box.hh"
 
 #if !defined(G4GEOM_USE_UBOX)