diff --git a/skimage/feature/tests/test_corner.py b/skimage/feature/tests/test_corner.py
index 372752d7..fa8ddd17 100644
--- a/skimage/feature/tests/test_corner.py
+++ b/skimage/feature/tests/test_corner.py
@@ -107,7 +107,7 @@ def test_num_peaks():
 
     lena_corners = corner_harris(data.lena())
 
-    for i in xrange(20):
+    for i in range(20):
         n = np.random.random_integers(20)
         results = peak_local_max(lena_corners, num_peaks=n)
         assert (results.shape[0] == n)