diff --git a/skimage/morphology/convex_hull.py b/skimage/morphology/convex_hull.py
index 1c46c43f..a6321216 100644
--- a/skimage/morphology/convex_hull.py
+++ b/skimage/morphology/convex_hull.py
@@ -107,3 +107,4 @@ def convex_hull_object(image, neighbors=8):
         convex_img = np.logical_or(convex_img, convex_obj)
 
     return convex_img
+