diff --git a/src/net.cpp b/src/net.cpp
index f863033ff..ed5713b01 100644
--- a/src/net.cpp
+++ b/src/net.cpp
@@ -1492,6 +1492,7 @@ static std::string GetDNSHost(const CDNSSeedData& data, ServiceFlags* requiredSe
         return data.host;
     }
 
+    // See chainparams.cpp, most dnsseeds only support one or two possible servicebits hostnames
     return strprintf("x%x.%s", *requiredServiceBits, data.host);
 }