diff --git a/pkgs/applications/virtualization/qemu/default.nix b/pkgs/applications/virtualization/qemu/default.nix
index 1e39f0496462..d64baca2cc7e 100644
--- a/pkgs/applications/virtualization/qemu/default.nix
+++ b/pkgs/applications/virtualization/qemu/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, fetchpatch, python2, zlib, pkgconfig, glib
+{ stdenv, fetchurl, fetchpatch, python, zlib, pkgconfig, glib
 , ncurses, perl, pixman, vde2, alsaLib, texinfo, flex
 , bison, lzo, snappy, libaio, gnutls, nettle, curl
 , makeWrapper
@@ -47,7 +47,7 @@ stdenv.mkDerivation rec {
     sha256 = "085g6f75si8hbn94mnnjn1r7ysixn5bqj4bhqwvadj00fhzp2zvd";
   };
 
-  nativeBuildInputs = [ python2 pkgconfig flex bison ];
+  nativeBuildInputs = [ python python.pkgs.sphinx pkgconfig flex bison ];
   buildInputs =
     [ zlib glib ncurses perl pixman
       vde2 texinfo makeWrapper lzo snappy
@@ -112,6 +112,7 @@ stdenv.mkDerivation rec {
     [ "--audio-drv-list=${audio}"
       "--sysconfdir=/etc"
       "--localstatedir=/var"
+      "--enable-docs"
     ]
     # disable sysctl check on darwin.
     ++ optional stdenv.isDarwin "--cpu=x86_64"
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 87efce6a995e..3a1835850ade 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -19803,6 +19803,7 @@ in
   qemu = callPackage ../applications/virtualization/qemu {
     inherit (darwin.apple_sdk.frameworks) CoreServices Cocoa Hypervisor;
     inherit (darwin.stubs) rez setfile;
+    python = python3;
   };
 
   qgis-unwrapped = libsForQt5.callPackage ../applications/gis/qgis/unwrapped.nix {