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-rw-r--r--scripts/download-using-manifests.pl.in1
1 files changed, 1 insertions, 0 deletions
diff --git a/scripts/download-using-manifests.pl.in b/scripts/download-using-manifests.pl.in
index 4dbc2396f79b..ed3290c18166 100644
--- a/scripts/download-using-manifests.pl.in
+++ b/scripts/download-using-manifests.pl.in
@@ -194,6 +194,7 @@ sub downloadFile {
     $ENV{"QUIET"} = 1;
     $ENV{"NIX_HASH_ALGO"} = $hashAlgo;
     my ($hash2, $path) = `@bindir@/nix-prefetch-url '$url' '$hash'`;
+    die "download of `$url' failed" unless $? == 0;
     chomp $hash2;
     chomp $path;
     die "hash mismatch, expected $hash, got $hash2" if $hash ne $hash2;