diff --git a/.gitlab/pipeline/zombienet.yml b/.gitlab/pipeline/zombienet.yml
index 5aa37f783a0a..08bfed2e24ce 100644
--- a/.gitlab/pipeline/zombienet.yml
+++ b/.gitlab/pipeline/zombienet.yml
@@ -9,7 +9,6 @@
     RUN_IN_CI: "1"
     KUBERNETES_CPU_REQUEST: "512m"
     KUBERNETES_MEMORY_REQUEST: "1Gi"
-    NODE_OPTIONS: "--max-old-space-size=8192"
   timeout: 60m
 
 include:
diff --git a/polkadot/xcm/xcm-runtime-apis/src/trusted_query.rs b/polkadot/xcm/xcm-runtime-apis/src/trusted_query.rs
index e75af54ad2fd..a2e3e1625486 100644
--- a/polkadot/xcm/xcm-runtime-apis/src/trusted_query.rs
+++ b/polkadot/xcm/xcm-runtime-apis/src/trusted_query.rs
@@ -44,9 +44,7 @@ sp_api::decl_runtime_apis! {
 #[derive(Copy, Clone, Encode, Decode, Eq, PartialEq, Debug, TypeInfo)]
 pub enum Error {
 	/// Converting a versioned Asset structure from one version to another failed.
-	#[codec(index = 1)]
 	VersionedAssetConversionFailed,
 	/// Converting a versioned Location structure from one version to another failed.
-	#[codec(index = 1)]
 	VersionedLocationConversionFailed,
 }