diff --git a/src/Mod/Fem/femtest/testmesh.py b/src/Mod/Fem/femtest/testmesh.py
index 1d7f1cf9f2..14f9e54d6d 100644
--- a/src/Mod/Fem/femtest/testmesh.py
+++ b/src/Mod/Fem/femtest/testmesh.py
@@ -470,9 +470,8 @@ class TestMeshEleTetra10(unittest.TestCase):
         # femmesh_testfile = Fem.read(outfile)  # read the mesh from written mesh
         # femmesh_outfile = Fem.read(testfile)  # read the mesh from test mesh
         # directly use Python methods to read and write files
-        '''
         from feminout.importYamlJsonMesh import write
-        write(self.femmesh, outfile)
+        write(outfile, self.femmesh)
         from feminout.importYamlJsonMesh import read
         femmesh_testfile = read(outfile)
         femmesh_outfile = read(testfile)
@@ -482,7 +481,6 @@ class TestMeshEleTetra10(unittest.TestCase):
             femmesh_outfile,
             file_extension
         )
-        '''
 
     # ********************************************************************************************
     def test_tetra10_z88(