diff --git a/skimage/measure/__init__.py b/skimage/measure/__init__.py
index 18e8c438..588ec74d 100755
--- a/skimage/measure/__init__.py
+++ b/skimage/measure/__init__.py
@@ -1,3 +1,3 @@
 from .find_contours import find_contours
 from ._regionprops import regionprops
-from ._structural_similarity import ssim
+from ._structural_similarity import structural_similarity