diff --git a/peer/cwtch_peer.go b/peer/cwtch_peer.go
index a4867e4..4a8eb49 100644
--- a/peer/cwtch_peer.go
+++ b/peer/cwtch_peer.go
@@ -16,7 +16,7 @@ import (
 	"time"
 )
 
-const lastKnownSignature = "LastKnowSignature"
+const lastKnownSignature = "LastKnownSignature"
 
 var autoHandleableEvents = map[event.Type]bool{event.EncryptedGroupMessage: true, event.PeerStateChange: true,
 	event.ServerStateChange: true, event.NewGroupInvite: true, event.NewMessageFromPeer: true,