diff --git a/pkgs/servers/mail/mailman/default.nix b/pkgs/servers/mail/mailman/default.nix
index 77dbef745c8d..5571a5bef7f3 100644
--- a/pkgs/servers/mail/mailman/default.nix
+++ b/pkgs/servers/mail/mailman/default.nix
@@ -26,9 +26,9 @@ let
         mailmanEnv = self.python3.withPackages
           (ps: [ mailman ps.psycopg2 ]
             ++ lib.optional withHyperkitty mailman-hyperkitty
-            ++ lib.optionals withLDAP [ ps.ldap ps.django-auth-ldap ]);
+            ++ lib.optionals withLDAP [ ps.python-ldap ps.django-auth-ldap ]);
         webEnv = self.python3.withPackages
-          (ps: [ web ps.psycopg2 ] ++ lib.optionals withLDAP [ ps.ldap ps.django-auth-ldap ]);
+          (ps: [ web ps.psycopg2 ] ++ lib.optionals withLDAP [ ps.python-ldap ps.django-auth-ldap ]);
       };
   });