diff --git a/pkgs/build-support/release/debian-build.nix b/pkgs/build-support/release/debian-build.nix
index b763fea13579..2dae9742467f 100644
--- a/pkgs/build-support/release/debian-build.nix
+++ b/pkgs/build-support/release/debian-build.nix
@@ -71,7 +71,7 @@ vmTools.runInLinuxImage (stdenv.mkDerivation (
       done
 
       for i in $extraDebs; do
-        echo "file deb $(ls $i/debs/*.deb | sort | head -1)" >> $out/nix-support/hydra-build-products
+        echo "file deb-extra $(ls $i/debs/*.deb | sort | head -1)" >> $out/nix-support/hydra-build-products
       done
 
       eval "$postInstall" 
diff --git a/pkgs/build-support/release/rpm-build.nix b/pkgs/build-support/release/rpm-build.nix
index edcec2168686..e758db24665e 100644
--- a/pkgs/build-support/release/rpm-build.nix
+++ b/pkgs/build-support/release/rpm-build.nix
@@ -30,7 +30,7 @@ vmTools.buildRPM (
         echo "file rpm $i" >> $out/nix-support/hydra-build-products
       done
       for rpmdir in $extraRPMs ; do
-        echo "file rpm $(ls $rpmdir/rpms/*/*.rpm | grep -v 'src\.rpm' | sort | head -1)" >> $out/nix-support/hydra-build-products
+        echo "file rpm-extra $(ls $rpmdir/rpms/*/*.rpm | grep -v 'src\.rpm' | sort | head -1)" >> $out/nix-support/hydra-build-products
       done
     ''; # */