diff --git a/skimage/morphology/selem.py b/skimage/morphology/selem.py
index 36ce4fe9..b7b65d72 100644
--- a/skimage/morphology/selem.py
+++ b/skimage/morphology/selem.py
@@ -311,4 +311,4 @@ def _default_selem(ndim):
 
     """
     return ndimage.morphology.generate_binary_structure(ndim, 1)
-    
\ No newline at end of file
+