diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index db2b795313d9..500fa583d03f 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -7357,7 +7357,7 @@ let
 
     buildInputs = with self; [nose] ++ optionals isPy27 [mock];
 
-    propagatedBuildInputs = with self; [decorator pickleshare simplegeneric traitlets requests pexpect sqlite3];
+    propagatedBuildInputs = with self; [decorator pickleshare simplegeneric traitlets readline requests pexpect sqlite3];
 
     meta = {
       description = "IPython: Productive Interactive Computing";