Index: src/OFDNSResolver.m
==================================================================
--- src/OFDNSResolver.m
+++ src/OFDNSResolver.m
@@ -2009,10 +2009,17 @@
 	    answerRecords, authorityRecords, additionalRecords,
 	    query->_context, nil);
 
 	return true;
 }
+
+-		   (void)socket: (OF_KINDOF(OFUDPSocket *))sock
+  didFailToReceiveWithException: (id)exception
+{
+	[sock asyncReceiveIntoBuffer: _buffer
+			      length: BUFFER_LENGTH];
+}
 
 - (void)asyncResolveSocketAddressesForHost: (OFString *)host
 				    target: (id)target
 				  selector: (SEL)selector
 				   context: (id)context

Index: src/OFRunLoop+Private.h
==================================================================
--- src/OFRunLoop+Private.h
+++ src/OFRunLoop+Private.h
@@ -24,14 +24,16 @@
 
 OF_ASSUME_NONNULL_BEGIN
 
 @class OFRunLoop_State;
 
+#ifdef OF_HAVE_SOCKETS
 @protocol OFTCPSocketDelegate_Private <OFObject>
 - (void)of_socketDidConnect: (OF_KINDOF(OFTCPSocket *))socket
 		  exception: (nullable id)exception;
 @end
+#endif
 
 @interface OFRunLoop ()
 + (void)of_setMainRunLoop: (OFRunLoop *)runLoop;
 #ifdef OF_HAVE_SOCKETS
 + (void)of_addAsyncReadForStream: (OFStream <OFReadyForReadingObserving> *)