diff --git a/skimage/transform/tests/test_geometric.py b/skimage/transform/tests/test_geometric.py
index b6db1dec..abe8b2e7 100644
--- a/skimage/transform/tests/test_geometric.py
+++ b/skimage/transform/tests/test_geometric.py
@@ -142,11 +142,11 @@ def test_polynomial_estimation():
     tform2 = PolynomialTransform()
     tform2.estimate(SRC, DST, order=10)
     assert_array_almost_equal(tform2._params, tform._params)
-    
-    
+
+
 def test_polynomial_init():
     tform = estimate_transform('polynomial', SRC, DST, order=10)
-    # init with transformation matrix
+    # init with transformation parameters
     tform2 = PolynomialTransform(tform._params)
     assert_array_almost_equal(tform2._params, tform._params)