Index: src/exceptions/OFDNSQueryFailedException.h
==================================================================
--- src/exceptions/OFDNSQueryFailedException.h
+++ src/exceptions/OFDNSQueryFailedException.h
@@ -50,19 +50,23 @@
  * @return A new, autoreleased address translation failed exception
  */
 + (instancetype)exceptionWithQuery: (OFDNSQuery *)query
 			 errorCode: (OFDNSResolverErrorCode)errorCode;
 
++ (instancetype)exception OF_UNAVAILABLE;
+
 /**
  * @brief Initializes an already allocated DNS query failed exception.
  *
  * @param query The query which could not be performed
  * @param errorCode The error from the resolver
  * @return An initialized address translation failed exception
  */
 - (instancetype)initWithQuery: (OFDNSQuery *)query
 		    errorCode: (OFDNSResolverErrorCode)errorCode;
+
+- (instancetype)init OF_UNAVAILABLE;
 @end
 
 #ifdef __cplusplus
 extern "C" {
 #endif

Index: src/exceptions/OFDNSQueryFailedException.m
==================================================================
--- src/exceptions/OFDNSQueryFailedException.m
+++ src/exceptions/OFDNSQueryFailedException.m
@@ -56,10 +56,15 @@
 			 errorCode: (OFDNSResolverErrorCode)errorCode
 {
 	return [[[self alloc] initWithQuery: query
 				  errorCode: errorCode] autorelease];
 }
+
++ (instancetype)exception
+{
+	OF_UNRECOGNIZED_SELECTOR
+}
 
 - (instancetype)initWithQuery: (OFDNSQuery *)query
 		    errorCode: (OFDNSResolverErrorCode)errorCode
 {
 	self = [super init];
@@ -72,10 +77,15 @@
 		@throw e;
 	}
 
 	return self;
 }
+
+- (instancetype)init
+{
+	OF_INVALID_INIT_METHOD
+}
 
 - (void)dealloc
 {
 	[_query release];