diff --git a/tests/integration/test_mpfaMultiDim.py b/tests/integration/test_mpfaMultiDim.py
index a47d499e1d..2977aec1d8 100644
--- a/tests/integration/test_mpfaMultiDim.py
+++ b/tests/integration/test_mpfaMultiDim.py
@@ -7,9 +7,7 @@
 
 
 def setup_cart_2d(nx):
-    mdg, _ = pp.md_grids_2d.two_intersecting(
-        nx, [0.2, 0.8], [0.8, 0.2], simplex=False
-    )
+    mdg, _ = pp.md_grids_2d.two_intersecting(nx, [0.2, 0.8], [0.8, 0.2], simplex=False)
     kw = "flow"
     aperture = 0.01 / np.max(nx)
     for sd, data in mdg.subdomains(return_data=True):