diff --git a/packages/nibijs/src/chain/chain.ts b/packages/nibijs/src/chain/chain.ts
index 9a35d740..e93ab9ad 100644
--- a/packages/nibijs/src/chain/chain.ts
+++ b/packages/nibijs/src/chain/chain.ts
@@ -75,7 +75,7 @@ export class CustomChain implements Chain {
 
   private initChainId = () => {
     const { prefix, shortName, number } = this.chainIdParts
-    return [prefix, shortName, number].filter(Boolean).join("-")
+    return [prefix, shortName, number].join("-")
   }
 }