diff --git a/toolkit/partner-chains-cli/src/create_chain_spec/mod.rs b/toolkit/partner-chains-cli/src/create_chain_spec/mod.rs
index 19d360935..4ee86405c 100644
--- a/toolkit/partner-chains-cli/src/create_chain_spec/mod.rs
+++ b/toolkit/partner-chains-cli/src/create_chain_spec/mod.rs
@@ -120,15 +120,15 @@ impl CreateChainSpecCmd {
 		let initial_authorities = config
 			.initial_permissioned_candidates_parsed
 			.iter()
-			.map(|c| {
-				json!({
+			.map(|c| -> anyhow::Result<serde_json::Value> {
+				Ok(json!({
 					"Permissioned": {
-						"id": serde_json::to_value(c.sidechain).unwrap(),
+						"id": serde_json::to_value(c.sidechain)?,
 						"keys": c.session_keys()
 					}
-				})
+				}))
 			})
-			.collect::<Vec<serde_json::Value>>();
+			.collect::<Result<Vec<serde_json::Value>, _>>()?;
 		let initial_authorities = serde_json::Value::Array(initial_authorities);
 		Self::update_field(
 			&mut chain_spec,