diff --git a/skimage/viewer/canvastools/recttool.py b/skimage/viewer/canvastools/recttool.py
index 3f8fbd79..595faba6 100644
--- a/skimage/viewer/canvastools/recttool.py
+++ b/skimage/viewer/canvastools/recttool.py
@@ -48,23 +48,23 @@ class RectangleTool(CanvasToolBase, RectangleSelector):
     >>> from skimage.draw import line
     >>> from skimage.draw import set_color
 
-    >>> im = data.lena()
+    >>> im = data.coffee()
     >>> [f, ax] = plt.subplots()
     >>> ax.imshow(im)
 
     >>> def stampa(extents):
-    ...     global im,ax
-    ...     coord = np.int64(extents)
-    ...     [rr1, cc1] = line(coord[2],coord[0],coord[2],coord[1])
-    ...     [rr2, cc2] = line(coord[2],coord[1],coord[3],coord[1])
-    ...     [rr3, cc3] = line(coord[3],coord[1],coord[3],coord[0])
-    ...     [rr4, cc4] = line(coord[3],coord[0],coord[2],coord[0])
-    ...     set_color(im, (rr1, cc1), [255, 255, 0])
-    ...     set_color(im, (rr2, cc2), [0, 255, 255])
-    ...     set_color(im, (rr3, cc3), [255, 0, 255])
-    ...     set_color(im, (rr4, cc4), [0, 0, 0])
-    ...     ax.imshow(im)
-    ...     plt.show()
+    >>>     global im,ax
+    >>>     coord = np.int64(extents)
+    >>>     [rr1, cc1] = line(coord[2],coord[0],coord[2],coord[1])
+    >>>     [rr2, cc2] = line(coord[2],coord[1],coord[3],coord[1])
+    >>>     [rr3, cc3] = line(coord[3],coord[1],coord[3],coord[0])
+    >>>     [rr4, cc4] = line(coord[3],coord[0],coord[2],coord[0])
+    >>>     set_color(im, (rr1, cc1), [255, 255, 0])
+    >>>     set_color(im, (rr2, cc2), [0, 255, 255])
+    >>>     set_color(im, (rr3, cc3), [255, 0, 255])
+    >>>     set_color(im, (rr4, cc4), [0, 0, 0])
+    >>>     ax.imshow(im)
+    >>>     plt.show()
 
     >>> rect_tool = RectangleTool(ax, on_enter=stampa)
     >>> plt.show()