diff --git a/utils/meshGeneration/generateMesh.py b/utils/meshGeneration/generateMesh.py
index 9d6805b..26dc861 100644
--- a/utils/meshGeneration/generateMesh.py
+++ b/utils/meshGeneration/generateMesh.py
@@ -12,7 +12,7 @@ def generate_spherical_mesh(radius=1, meshSize=0.1):
     return myMesh
 
 def write_mfem_mesh(meshData, filename):
-    meshio.write(filename, meshData, file_format='netgen')
+    meshio.write(filename, meshData, file_format='vtk')
 
 if __name__ == '__main__':
     parser = argparse.ArgumentParser(description='Generate a spherical mesh')
diff --git a/utils/meshGeneration/sphere.mesh b/utils/meshGeneration/sphere.mesh
index 61ae482..24e26f4 100644
Binary files a/utils/meshGeneration/sphere.mesh and b/utils/meshGeneration/sphere.mesh differ