diff --git a/zombienet/precompile.sh b/zombienet/precompile.sh
index 5b1091c23f..984a776f77 100755
--- a/zombienet/precompile.sh
+++ b/zombienet/precompile.sh
@@ -15,10 +15,10 @@ undying-collator export-genesis-wasm > $DIR/undying-collator.json
 polkadot-parachain export-genesis-wasm > $DIR/polkadot-parachain.json
 polkadot build-spec --chain westend-local --raw > $DIR/westend-local.json
 
-for id in {2000..2002}
+for id in $(seq 2000 2002)
 do
   polkadot-parachain export-genesis-wasm --chain glutton-westend-local-${id} \
-    > $DIR/glutton-parachain-${id}.json
+    > "${DIR}/glutton-parachain-${id}.json"
 done
 
 kagome --tmp --chain $DIR/rococo-local.json \