diff --git a/zetaclient/evm_client.go b/zetaclient/evm_client.go
index b3e9a172b1..52bc29ed00 100644
--- a/zetaclient/evm_client.go
+++ b/zetaclient/evm_client.go
@@ -604,7 +604,7 @@ func (ob *EVMChainClient) observeInTX() error {
 			ob.logger.ExternalChainWatcher.Info().Msgf("TxBlockNumber %d Transaction Hash: %s Message : %s", event.Raw.BlockNumber, event.Raw.TxHash, event.Message)
 			destChain := common.GetChainFromChainID(event.DestinationChainId.Int64())
 			if destChain == nil {
-				ob.logger.ExternalChainWatcher.Warn().Msgf("chain id not supported  %s", event.DestinationChainId.Int64())
+				ob.logger.ExternalChainWatcher.Warn().Msgf("chain id not supported  %d", event.DestinationChainId.Int64())
 				continue
 			}
 			destAddr := clienttypes.BytesToEthHex(event.DestinationAddress)
diff --git a/zetaclient/zetabridge.go b/zetaclient/zetabridge.go
index 975dcdb29b..48b86bf9a9 100644
--- a/zetaclient/zetabridge.go
+++ b/zetaclient/zetabridge.go
@@ -184,7 +184,7 @@ func (b *ZetaCoreBridge) UpdateConfigFromCore(cfg *config.Config) error {
 		}
 		_, found := cfg.EVMChainConfigs[params.ChainId]
 		if !found {
-			panic(fmt.Sprintf("EvmConfig %s is nil for this client ", params.ChainId))
+			panic(fmt.Sprintf("EvmConfig %d is nil for this client ", params.ChainId))
 		}
 		if cfg.EVMChainConfigs[params.ChainId].CoreParams == nil {
 			cfg.EVMChainConfigs[params.ChainId].CoreParams = config.NewCoreParams()
diff --git a/zetaclient/zetacore_observer.go b/zetaclient/zetacore_observer.go
index bdd39c8254..dcff12938e 100644
--- a/zetaclient/zetacore_observer.go
+++ b/zetaclient/zetacore_observer.go
@@ -246,7 +246,7 @@ func GetTargetChain(send *types.CrossChainTx) (string, error) {
 func (co *CoreObserver) getTargetChainOb(send *types.CrossChainTx) (ChainClient, error) {
 	chainStr, err := GetTargetChain(send)
 	if err != nil {
-		return nil, fmt.Errorf("chain %s not found", send.GetCurrentOutTxParam().ReceiverChainId)
+		return nil, fmt.Errorf("chain %d not found", send.GetCurrentOutTxParam().ReceiverChainId)
 	}
 	chainName := common.ParseChainName(chainStr)
 	c := common.GetChainFromChainName(chainName)