diff --git a/pkgs/development/interpreters/python/cpython/3.6/default.nix b/pkgs/development/interpreters/python/cpython/3.6/default.nix
index 5ee5c9179534..fc68aae1c045 100644
--- a/pkgs/development/interpreters/python/cpython/3.6/default.nix
+++ b/pkgs/development/interpreters/python/cpython/3.6/default.nix
@@ -207,7 +207,7 @@ in stdenv.mkDerivation {
     withPackages = import ../../with-packages.nix { inherit buildEnv pythonPackages;};
     pkgs = pythonPackages;
     isPy3 = true;
-    isPy35 = true;
+    isPy36 = true;
     is_py3k = true;  # deprecated
     interpreter = "${self}/bin/${executable}";
   };