diff --git a/go-pool/stratum/stratum.go b/go-pool/stratum/stratum.go
index df01ed2..0715f0e 100644
--- a/go-pool/stratum/stratum.go
+++ b/go-pool/stratum/stratum.go
@@ -198,7 +198,7 @@ func (s *StratumServer) handleClient(cs *Session, e *Endpoint) {
 			var req JSONRpcReq
 			err = json.Unmarshal(data, &req)
 			if err != nil {
-				log.Printf("Malformed request from: %v", cs.ip, err)
+				log.Printf("Malformed request from %s: %v", cs.ip, err)
 				break
 			}
 			s.setDeadline(cs.conn)