diff --git a/scripts/build-remote.pl.in b/scripts/build-remote.pl.in
index dd56b600c7..c8e73cebb4 100755
--- a/scripts/build-remote.pl.in
+++ b/scripts/build-remote.pl.in
@@ -289,13 +289,13 @@ if (system("exec ssh $hostName @sshOpts '(read; kill -INT -\$\$) <&0 & exec nix-
 
 
 # Copy the output from the build machine.
-foreach my $output (@outputs) {
+my @outputs2 = grep { !isValidPath($_) } @outputs;
+if (scalar @outputs2 > 0) {
     my $maybeSignRemote = "";
     $maybeSignRemote = "--sign" if $UID != 0;
-    next if isValidPath($output);
-    system("exec ssh $hostName @sshOpts 'nix-store --export $maybeSignRemote $output'" .
-           "| NIX_HELD_LOCKS=$output @bindir@/nix-store --import > /dev/null") == 0
-        or die "cannot copy $output from $hostName: $?";
+    system("exec ssh $hostName @sshOpts 'nix-store --export $maybeSignRemote @outputs2'" .
+           "| NIX_HELD_LOCKS='@outputs2' @bindir@/nix-store --import > /dev/null") == 0
+        or die("cannot copy paths " . join(", ", @outputs) . " from `$hostName': $?");
 }