diff --git a/MagneticField/MagFieldElements/MagFieldElements/BFieldMesh.h b/MagneticField/MagFieldElements/MagFieldElements/BFieldMesh.h
index d714272c4c443252275bdb87ba8bbd58db3d5076..9c85785a4af2c2a59ca69d5a3409b8986c81660d 100644
--- a/MagneticField/MagFieldElements/MagFieldElements/BFieldMesh.h
+++ b/MagneticField/MagFieldElements/MagFieldElements/BFieldMesh.h
@@ -27,9 +27,9 @@ public:
   BFieldMesh() = default;
   BFieldMesh(const BFieldMesh&) = default;
   BFieldMesh(BFieldMesh&&) = default;
-    BFieldMesh& operator=(const BFieldMesh&) = default;
-    BFieldMesh& operator=(BFieldMesh&&) = default;
-    ~BFieldMesh() = default;
+  BFieldMesh& operator=(const BFieldMesh&) = default;
+  BFieldMesh& operator=(BFieldMesh&&) = default;
+  ~BFieldMesh() = default;
   // constructor
   BFieldMesh(double zmin,
              double zmax,