diff --git a/pkgs/build-support/release/nix-build.nix b/pkgs/build-support/release/nix-build.nix
index 201fe4e799d7..5c569f97ccf0 100644
--- a/pkgs/build-support/release/nix-build.nix
+++ b/pkgs/build-support/release/nix-build.nix
@@ -43,7 +43,7 @@ stdenv.mkDerivation (
               KEEPBUILDDIR="$out/`basename $TMPDIR`"
               header "Copying build directory to $KEEPBUILDDIR"
               ensureDir $KEEPBUILDDIR
-              cp -vR $TMPDIR/* $KEEPBUILDDIR
+              cp -R $TMPDIR/* $KEEPBUILDDIR
               stopNest 
           fi
       fi
diff --git a/pkgs/build-support/release/source-tarball.nix b/pkgs/build-support/release/source-tarball.nix
index afaea4ca2e06..94566e4c4605 100644
--- a/pkgs/build-support/release/source-tarball.nix
+++ b/pkgs/build-support/release/source-tarball.nix
@@ -75,7 +75,7 @@ stdenv.mkDerivation (
               KEEPBUILDDIR="$out/`basename $TMPDIR`"
               header "Copying build directory to $KEEPBUILDDIR"
               ensureDir $KEEPBUILDDIR
-              cp -vR $TMPDIR/* $KEEPBUILDDIR
+              cp -R $TMPDIR/* $KEEPBUILDDIR
               stopNest
           fi
       fi