diff --git a/matcher/dhcp/dhcp.go b/matcher/dhcp/dhcp.go
index cb9c607..ad7c4cf 100644
--- a/matcher/dhcp/dhcp.go
+++ b/matcher/dhcp/dhcp.go
@@ -164,7 +164,7 @@ func recvDHCPOffer(zone *types.DiscoveryZone) {
 				ipStr = byteToIpString(r.Next(4))
 				dns = append(dns, ipStr)
 			}
-			log.Infof("DNS", dns)
+			log.Infof("DNS: %s", dns)
 		}
 
 		if v == OPT_CODE_SERVER_IDENTIFIER && r.Next(1)[0] == 4 {
@@ -172,6 +172,7 @@ func recvDHCPOffer(zone *types.DiscoveryZone) {
 			log.Infof("DHCP SERVER: %s", ipStr)
 		}
 	}
+	log.Flush()
 
 }