diff --git a/setup.cfg b/setup.cfg
index ec38ffb1fcc8..b4c751a305db 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -15,6 +15,7 @@ classifier =
     Programming Language :: Python
     Programming Language :: Python :: 2
     Programming Language :: Python :: 2.7
+    Programming Language :: Python :: 3
     Programming Language :: Python :: 3.5
 
 [global]