diff --git a/setup.py b/setup.py
index 76a72841204d9a15dc708e7e9d37b8a164907d08..5046490416f66d4e3ae778007cb40bc19299e701 100644
--- a/setup.py
+++ b/setup.py
@@ -34,6 +34,7 @@ install_requires = [
 
 tests_require = [
     'pytest >= 2.0.3',
+    'coverage',
     ]
 
 docs_require = [