diff --git a/pkgs/top-level/python-aliases.nix b/pkgs/top-level/python-aliases.nix
index 46d3e6deecc3..7d749693e874 100644
--- a/pkgs/top-level/python-aliases.nix
+++ b/pkgs/top-level/python-aliases.nix
@@ -123,6 +123,7 @@ mapAliases ({
   logilab_common = logilab-common; # added 2022-11-21
   loo-py = loopy; # added 2022-05-03
   Markups = markups; # added 2022-02-14
+  MDP = mdp; # added 2023-02-24
   MechanicalSoup = mechanicalsoup; # added 2021-06-01
   memcached = python-memcached; # added 2022-05-06
   mailman = throw "Please use pkgs.mailman"; # added 2022-04-29
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index c41bf30acb8c..cc7cfba5927d 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -5810,7 +5810,7 @@ self: super: with self; {
 
   mdutils = callPackage ../development/python-modules/mdutils { };
 
-  MDP = callPackage ../development/python-modules/mdp { };
+  mdp = callPackage ../development/python-modules/mdp { };
 
   measurement = callPackage ../development/python-modules/measurement { };