diff --git a/packages/fcl-ethereum-provider/src/network/network-manager.ts b/packages/fcl-ethereum-provider/src/network/network-manager.ts
index bb7d630e4..14acf2ce3 100644
--- a/packages/fcl-ethereum-provider/src/network/network-manager.ts
+++ b/packages/fcl-ethereum-provider/src/network/network-manager.ts
@@ -80,4 +80,12 @@ export class NetworkManager {
     }
     return chainId
   }
+
+  /**
+   * No-op implementation for wallet_addEthereumChain.
+   * Since FCL does support dynamic chain additions.
+   */
+  public async wallet_addEthereumChain(): Promise<null> {
+    return null;
+  }
 }
diff --git a/packages/fcl-ethereum-provider/src/rpc/rpc-processor.ts b/packages/fcl-ethereum-provider/src/rpc/rpc-processor.ts
index efd82c269..7dffaa419 100644
--- a/packages/fcl-ethereum-provider/src/rpc/rpc-processor.ts
+++ b/packages/fcl-ethereum-provider/src/rpc/rpc-processor.ts
@@ -59,6 +59,8 @@ export class RpcProcessor {
           this.accountManager,
           params as PersonalSignParams
         )
+      case "wallet_addEthereumChain":
+        return await this.networkManager.wallet_addEthereumChain();
       default:
         return await this.gateway.request({
           chainId,