diff --git a/setup.py b/setup.py
index f561241e..9abf58be 100644
--- a/setup.py
+++ b/setup.py
@@ -65,6 +65,7 @@ def run_tests(self):
         "xnumpy",
         "scikit-image",
         "scikit-learn",
+        "tifffile",
         "yail",
         "mahotas",
         "vigra",