--- a/netwerk/dns/DNSRequestChild.cpp
+++ b/netwerk/dns/DNSRequestChild.cpp
@@ -81,17 +81,17 @@ ChildDNSRecord::GetNextAddr(uint16_t por
 {
   if (mCurrent >= mLength) {
     return NS_ERROR_NOT_AVAILABLE;
   }
 
   memcpy(addr, &mAddresses[mCurrent++], sizeof(NetAddr));
 
   // both Ipv4/6 use same bits for port, so safe to just use ipv4's field
-  addr->inet.port = port;
+  addr->inet.port = htons(port);
 
   return NS_OK;
 }
 
 // shamelessly copied from nsDNSRecord
 NS_IMETHODIMP
 ChildDNSRecord::GetScriptableNextAddr(uint16_t port, nsINetAddr **result)
 {