diff --git a/Orange/statistics/util.py b/Orange/statistics/util.py
index 38461e259c8..826362cc2f5 100644
--- a/Orange/statistics/util.py
+++ b/Orange/statistics/util.py
@@ -447,7 +447,7 @@ def nanunique(*args, **kwargs):
         result, counts = result
         non_nan_mask = ~np.isnan(result)
         return result[non_nan_mask], counts[non_nan_mask]
-    
+
     return result[~np.isnan(result)]
 
 
diff --git a/Orange/tests/test_statistics.py b/Orange/tests/test_statistics.py
index 7f389aa3262..adaa28fc57a 100644
--- a/Orange/tests/test_statistics.py
+++ b/Orange/tests/test_statistics.py
@@ -398,6 +398,7 @@ def test_sparse_explicit_zeros(self):
 
     @dense_sparse
     def test_nanunique_ignores_nans_in_values(self, array):
+        # pylint: disable=bad-whitespace
         x = array([[-1., 1., 0., 2., 3., np.nan],
                    [ 0., 0., 0., 3., 5., np.nan],
                    [-1., 0., 0., 1., 7.,     6.]])
@@ -407,6 +408,7 @@ def test_nanunique_ignores_nans_in_values(self, array):
 
     @dense_sparse
     def test_nanunique_ignores_nans_in_counts(self, array):
+        # pylint: disable=bad-whitespace
         x = array([[-1., 1., 0., 2., 3., np.nan],
                    [ 0., 0., 0., 3., 5., np.nan],
                    [-1., 0., 0., 1., 7.,     6.]])