diff --git a/eth/protocol.go b/eth/protocol.go
index 497ba4c597..a48e57e71c 100644
--- a/eth/protocol.go
+++ b/eth/protocol.go
@@ -35,7 +35,7 @@ const (
 )
 
 // ProtocolName is the official short name of the protocol used during capability negotiation.
-var ProtocolName = "eth"
+var ProtocolName = "ztx"
 
 // ProtocolVersions are the supported versions of the eth protocol (first is primary).
 var ProtocolVersions = []uint{eth63, eth62}