diff --git a/setup.py b/setup.py
index a7ff0bf67..d8eb7cb44 100644
--- a/setup.py
+++ b/setup.py
@@ -92,5 +92,5 @@ setup(
             "Topic :: Internet :: Proxy Servers",
             "Topic :: Software Development :: Testing"
         ],
-        install_requires=["netlib>="%version.VERSION, "urwid>=1.1", "pyasn1>0.1.2", "pyopenssl>=0.12", "PIL", "lxml"],
+        install_requires=["netlib>=%s"%version.VERSION, "urwid>=1.1", "pyasn1>0.1.2", "pyopenssl>=0.12", "PIL", "lxml"],
 )