diff --git a/SFEM/generateRF/utilRF.py b/SFEM/generateRF/utilRF.py
index a0dc992261e18a32c8c4ded068e3f337e75a665e..2b1426bd2cec8724bd28c63094047eabdf7545b4 100644
--- a/SFEM/generateRF/utilRF.py
+++ b/SFEM/generateRF/utilRF.py
@@ -391,9 +391,7 @@ def writeMeshFile(mechDir,outname,nstep0,gPTetNb,Keys,Fields):
   elID = np.reshape((elem[:,0].astype(int)).astype(str),(-1,1))   # (nel,1)
   #elID = np.reshape(elem[:,0].astype(int),(-1,1))     # (nel,1)
   print('Number of Elements: ',nel)
-  HeadLine="""$MeshFormat
-  2.2 0 8
-  $EndMeshFormat"""
+  HeadLine="""$MeshFormat\n2.2 0 8\n$EndMeshFormat"""
   # write *.msh files
   f = open(outname, "w")
   contents = []