diff --git a/odl/test/solvers/functional/default_functionals_test.py b/odl/test/solvers/functional/default_functionals_test.py
index <HASH>..<HASH> 100644
--- a/odl/test/solvers/functional/default_functionals_test.py
+++ b/odl/test/solvers/functional/default_functionals_test.py
@@ -583,7 +583,7 @@ def test_weighted_proximal_L1_norm(space):
 
     # Check if the subdifferential inequalities are satisfied.
     # p = prox_{sigma * f}(x) iff (x - p)/sigma = grad f(p)
-    assert all_almost_equal(func.gradient(p1), space.divide(x - p1, sigma))
+    assert all_almost_equal(func.gradient(p1), (x - p1) / sigma)
 
 
 if __name__ == '__main__':
MAINT: Replace 'divide' by '/' in test.