diff --git a/utils/meshGeneration/generateMesh.py b/utils/meshGeneration/generateMesh.py
index 26dc861..e3ad512 100644
--- a/utils/meshGeneration/generateMesh.py
+++ b/utils/meshGeneration/generateMesh.py
@@ -8,7 +8,7 @@ def generate_spherical_mesh(radius=1, meshSize=0.1):
         # Create a spherical (ball) geometry centered at (0,0,0)
         sphere = geo.add_ball([0, 0, 0], radius)
         # Generate a 2D mesh (i.e. surface mesh) of the sphere
-        myMesh = geo.generate_mesh(dim=2)
+        myMesh = geo.generate_mesh(dim=3)
     return myMesh
 
 def write_mfem_mesh(meshData, filename):
@@ -21,4 +21,4 @@ if __name__ == '__main__':
     args = parser.parse_args()
 
     meshData = generate_spherical_mesh(args.radius, args.meshSize)
-    write_mfem_mesh(meshData, 'sphere.mesh')
\ No newline at end of file
+    write_mfem_mesh(meshData, 'sphere.vtk')
\ No newline at end of file
diff --git a/utils/meshGeneration/sphere.mesh b/utils/meshGeneration/sphere.mesh
deleted file mode 100644
index 24e26f4..0000000
Binary files a/utils/meshGeneration/sphere.mesh and /dev/null differ
diff --git a/utils/meshGeneration/sphere.vtk b/utils/meshGeneration/sphere.vtk
new file mode 100644
index 0000000..904ec6a
Binary files /dev/null and b/utils/meshGeneration/sphere.vtk differ