@@ -23,10 +23,11 @@
 
 @class OFArray OF_GENERIC(ObjectType);
 @class OFDictionary OF_GENERIC(KeyType, ObjectType);
 @class OFMutableDictionary OF_GENERIC(KeyType, ObjectType);
 @class OFNumber;
+@class OFUDPSocket;
 
 /*!
  * @class OFDNSResolver OFDNSResolver.h ObjFW/OFDNSResolver.h
  *
  * @brief A class for resolving DNS names.
@@ -38,10 +39,14 @@
 	OFArray OF_GENERIC(OFString *) *_nameServers;
 	OFString *_Nullable _localDomain;
 	OFArray OF_GENERIC(OFString *) *_searchDomains;
 	size_t _minNumberOfDotsInAbsoluteName;
 	bool _usesTCP;
+	OFUDPSocket *_IPv4Socket;
+#ifdef OF_HAVE_IPV6
+	OFUDPSocket *_IPv6Socket;
+#endif
 	OFMutableDictionary OF_GENERIC(OFNumber *, id) *_queries;
 }
 
 /*!
  * @brief A dictionary of static hosts.