diff --git a/Limelight/Database/TemporaryHost.m b/Limelight/Database/TemporaryHost.m
index 20f9f7d4..cbaf66d8 100644
--- a/Limelight/Database/TemporaryHost.m
+++ b/Limelight/Database/TemporaryHost.m
@@ -71,6 +71,7 @@
         parentHost.ipv6Address = self.ipv6Address;
     }
     // try to fix invalid mac happens in some cases
+    // 添加主机crash问题重点关注
     if (!(self.mac == nil || [self.mac isEqualToString:@"00:00:00:00:00:00"])) parentHost.mac = self.mac;
     if (self.serverCert != nil) {
         parentHost.serverCert = self.serverCert;
diff --git a/Limelight/Network/ServerInfoResponse.m b/Limelight/Network/ServerInfoResponse.m
index fffaf4cc..9b794dda 100644
--- a/Limelight/Network/ServerInfoResponse.m
+++ b/Limelight/Network/ServerInfoResponse.m
@@ -23,6 +23,7 @@
     
     
     // try to fix invalid mac happens in some cases
+    // 添加主机crash问题重点关注
     NSString* tmpMac = [[self getStringTag:TAG_MAC_ADDRESS] trim];
     if (!(tmpMac == nil || [tmpMac isEqualToString:@"00:00:00:00:00:00"])) host.mac = tmpMac;