diff --git a/setup.py b/setup.py
index e1462950..9ed42605 100644
--- a/setup.py
+++ b/setup.py
@@ -25,7 +25,8 @@
 install_requires = [
     'astutils >= 0.0.1',
     'networkx >= 1.9.1',
-    'ply >= 3.4']
+    'ply >= 3.4',
+    'setuptools >= 19.6']
 if sys.version_info.major < 3:
     pydot_require = 'pydot >= 1.0.28'
 else: