diff --git a/pkgs/applications/virtualization/virtualbox/default.nix b/pkgs/applications/virtualization/virtualbox/default.nix
index 3b0783a1509b..b09736d3138c 100644
--- a/pkgs/applications/virtualization/virtualbox/default.nix
+++ b/pkgs/applications/virtualization/virtualbox/default.nix
@@ -251,7 +251,7 @@ in stdenv.mkDerivation {
 
     mkdir -p "$out/share/virtualbox"
     cp -rv src/VBox/Main/UnattendedTemplates "$out/share/virtualbox"
-    ln -s "${virtualboxGuestAdditionsIso}/VBoxGuestAdditions_${version}.iso" "$out/share/virtualbox/VBoxGuestAdditions.iso"
+    ln -s "${virtualboxGuestAdditionsIso}" "$out/share/virtualbox/VBoxGuestAdditions.iso"
   '';
 
   preFixup = optionalString (!headless) ''
diff --git a/pkgs/applications/virtualization/virtualbox/guest-additions-iso/default.nix b/pkgs/applications/virtualization/virtualbox/guest-additions-iso/default.nix
index d2f9bc62ba18..cd2f58afc92a 100644
--- a/pkgs/applications/virtualization/virtualbox/guest-additions-iso/default.nix
+++ b/pkgs/applications/virtualization/virtualbox/guest-additions-iso/default.nix
@@ -1,22 +1,11 @@
-{ stdenv, fetchurl, lib, virtualbox}:
+{ fetchurl, lib, virtualbox}:
 
 let
   inherit (virtualbox) version;
 in
-stdenv.mkDerivation rec {
-  pname = "VirtualBox-GuestAdditions-iso";
-  inherit version;
-
-  src = fetchurl {
-    url = "http://download.virtualbox.org/virtualbox/${version}/VBoxGuestAdditions_${version}.iso";
-    sha256 = "0efbcb9bf4722cb19292ae00eba29587432e918d3b1f70905deb70f7cf78e8ce";
-  };
-
-  buildCommand = ''
-    mkdir -p $out
-    cp $src $out/
-  '';
-
+fetchurl {
+  url = "http://download.virtualbox.org/virtualbox/${version}/VBoxGuestAdditions_${version}.iso";
+  sha256 = "0efbcb9bf4722cb19292ae00eba29587432e918d3b1f70905deb70f7cf78e8ce";
   meta = {
     description = "Guest additions ISO for VirtualBox";
     longDescription = ''