diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index e0b411088abb..a9c9d2de49ec 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -9565,7 +9565,7 @@ in
   python36Full = python36.override{x11Support=true;};
   python37Full = python37.override{x11Support=true;};
   python38Full = python38.override{x11Support=true;};
-  python39Full = python38.override{x11Support=true;};
+  python39Full = python39.override{x11Support=true;};
 
   # pythonPackages further below, but assigned here because they need to be in sync
   pythonPackages = python.pkgs;