diff --git a/skimage/transform/finite_radon_transform.py b/skimage/transform/finite_radon_transform.py
index 13007dce..fa84c5e3 100644
--- a/skimage/transform/finite_radon_transform.py
+++ b/skimage/transform/finite_radon_transform.py
@@ -52,7 +52,7 @@ def frt2(a):
     >>> plt.imshow(f, interpolation='nearest', cmap=plt.cm.gray)
     >>> plt.xlabel('Angle')
     >>> plt.ylabel('Translation')
-    >>> plt.show()
+    >>> # plt.show()
 
     References
     ----------
diff --git a/skimage/transform/hough_transform.py b/skimage/transform/hough_transform.py
index 5b36b103..3c3a35de 100644
--- a/skimage/transform/hough_transform.py
+++ b/skimage/transform/hough_transform.py
@@ -137,7 +137,7 @@ def hough(img, theta=None):
     >>> plt.imshow(out, cmap=plt.cm.bone)
     >>> plt.xlabel('Angle (degree)')
     >>> plt.ylabel('Distance %d (pixel)' % d[0])
-    >>> plt.show()
+    >>> # plt.show()
 
     .. plot:: hough_tf.py