diff --git a/scripts/build_rln.sh b/scripts/build_rln.sh
index a4c825ecf..bb385e23e 100755
--- a/scripts/build_rln.sh
+++ b/scripts/build_rln.sh
@@ -52,9 +52,10 @@ if curl --silent --fail-with-body -L \
   -o "${tarball}";
 then
     echo "Downloaded ${tarball}"
-    tar -xzf "${tarball}"
-    mv "release/librln.a" "${output_filename}"
-    rm -rf "${tarball}" release
+    tmpdir=$(mktemp -d)
+    tar -xzf "${tarball}" -C "$tmpdir"
+    mv "$tmpdir/release/librln.a" "${output_filename}"
+    rm -rf "${tarball}" "$tmpdir"
 else
     echo "Failed to download ${tarball}"
     # Build rln instead