diff --git a/pkgs/applications/virtualization/qemu/default.nix b/pkgs/applications/virtualization/qemu/default.nix
index 3a6cdb6f8c60..dcf5b4e50097 100644
--- a/pkgs/applications/virtualization/qemu/default.nix
+++ b/pkgs/applications/virtualization/qemu/default.nix
@@ -7,11 +7,13 @@
 , x86Only ? false
 }:
 
+let n = "qemu-1.5.2"; in
+
 stdenv.mkDerivation rec {
-  name = "qemu-1.5.2";
+  name = n + (if x86Only then "-x86-only" else "");
 
   src = fetchurl {
-    url = "http://wiki.qemu.org/download/${name}.tar.bz2";
+    url = "http://wiki.qemu.org/download/${n}.tar.bz2";
     sha256 = "0l52jwlxmwp9g3jpq0g7ix9dq4qgh46nd2h58lh47f0a35yi8qgn";
   };
 
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 8c6eae1919e0..d2b472dce831 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -6717,7 +6717,7 @@ let
 
   "procps-ng" = callPackage ../os-specific/linux/procps-ng { };
 
-  qemu_kvm = qemu.override { x86Only = true; };
+  qemu_kvm = lowPrio (qemu.override { x86Only = true; });
 
   firmwareLinuxNonfree = callPackage ../os-specific/linux/firmware/firmware-linux-nonfree { };