diff --git a/libsrc/meshing/meshclass.cpp b/libsrc/meshing/meshclass.cpp
index d1c5313e..0e5545dc 100644
--- a/libsrc/meshing/meshclass.cpp
+++ b/libsrc/meshing/meshclass.cpp
@@ -5,6 +5,7 @@
 
 namespace netgen
 {
+
   static mutex buildsearchtree_mutex;
 
   Mesh :: Mesh ()