diff --git a/setup.cfg b/setup.cfg
index c233266..0efa702 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -12,7 +12,7 @@ classifier =
     Operating System :: OS Independent
     Programming Language :: Python
     Programming Language :: Python :: 3
-    Programming Language :: Python :: 3  :: Only
+    Programming Language :: Python :: 3 :: Only
     License :: OSI Approved :: MIT License
     Topic :: Internet :: WWW/HTTP :: WSGI
     Topic :: Software Development :: Libraries :: Python Modules