diff --git a/skimage/viewer/plugins/lineprofile.py b/skimage/viewer/plugins/lineprofile.py
index 2affc444..e7c04d87 100644
--- a/skimage/viewer/plugins/lineprofile.py
+++ b/skimage/viewer/plugins/lineprofile.py
@@ -1,3 +1,4 @@
+from __future__ import division
 import warnings
 
 import numpy as np