diff --git a/pkgs/build-support/vm/default.nix b/pkgs/build-support/vm/default.nix
index d8d2a8db522f..42bc2f5652d4 100644
--- a/pkgs/build-support/vm/default.nix
+++ b/pkgs/build-support/vm/default.nix
@@ -13,14 +13,11 @@ rec {
     rootModules = ["cifs" "virtio_net" "virtio_pci" "virtio_blk" "virtio_balloon" "nls_utf8"];
   };
 
-  
+
+  # !!! should use the mount_cifs package in all-packages.nix here.
   mountCifs = (makeStaticBinaries stdenv).mkDerivation {
     name = "mount.cifs";
-    src = fetchurl {
-      name = "mount.cifs.c";
-      url = "http://websvn.samba.org/cgi-bin/viewcvs.cgi/*checkout*/branches/SAMBA_3_0/source/client/mount.cifs.c?rev=6103";
-      sha256 = "19205gd3pv8g519hlbjaw559wqgf0h2vkln9xgqaqip2h446qarp";
-    };
+    src = mount_cifs.src;
     buildInputs = [nukeReferences];
     buildCommand = ''
       ensureDir $out/bin
diff --git a/pkgs/os-specific/linux/mount-cifs/default.nix b/pkgs/os-specific/linux/mount-cifs/default.nix
index d8c901b77f4b..490e6e05cbaa 100644
--- a/pkgs/os-specific/linux/mount-cifs/default.nix
+++ b/pkgs/os-specific/linux/mount-cifs/default.nix
@@ -4,9 +4,8 @@ stdenv.mkDerivation {
   name = "mount.cifs";
   
   src = fetchurl {
-    name = "mount.cifs.c";
-    url = "http://websvn.samba.org/cgi-bin/viewcvs.cgi/*checkout*/branches/SAMBA_3_0/source/client/mount.cifs.c?rev=6103";
-    sha256 = "19205gd3pv8g519hlbjaw559wqgf0h2vkln9xgqaqip2h446qarp";
+    url = http://nixos.org/tarballs/mount_cifs-20090330.c;
+    sha256 = "1d9v3qzic3d12vna8g7d1zsl1piwm20f6xhck319rbfkrdg0smnl";
   };
  
   buildCommand = ''