Index: src/SSLSocket.h
==================================================================
--- src/SSLSocket.h
+++ src/SSLSocket.h
@@ -40,21 +40,19 @@
 @interface SSLSocket: OFTCPSocket <OFTLSSocket>
 {
 	SSL *_SSL;
 	OFString *_certificateFile, *_privateKeyFile;
 	const char *_privateKeyPassphrase;
-	bool _certificateVerificationEnabled;
-	bool _requestClientCertificatesEnabled;
+	bool _verifiesCertificates, _requestsClientCertificates;
 }
 
-@property (nonatomic, getter=isRequestClientCertificatesEnabled)
-    bool requestClientCertificatesEnabled;
+@property (nonatomic) bool requestsClientCertificates;
 @property OF_NULLABLE_PROPERTY (readonly, nonatomic)
     X509Certificate *peerCertificate;
 
-- initWithSocket: (OFTCPSocket *)socket;
+- (instancetype)initWithSocket: (OFTCPSocket *)socket;
 - (OFData *)channelBindingDataWithType: (OFString *)type;
 - (nullable X509Certificate *)peerCertificate;
 - (void)verifyPeerCertificate;
 @end
 
 OF_ASSUME_NONNULL_END

Index: src/SSLSocket.m
==================================================================
--- src/SSLSocket.m
+++ src/SSLSocket.m
@@ -169,13 +169,12 @@
 @implementation SSLSocket
 @dynamic delegate;
 @synthesize certificateFile = _certificateFile;
 @synthesize privateKeyFile = _privateKeyFile;
 @synthesize privateKeyPassphrase = _privateKeyPassphrase;
-@synthesize certificateVerificationEnabled = _certificateVerificationEnabled;
-@synthesize requestClientCertificatesEnabled =
-    _requestClientCertificatesEnabled;
+@synthesize verifiesCertificates = _verifiesCertificates;
+@synthesize requestsClientCertificates = _requestsClientCertificates;
 
 + (void)load
 {
 	of_tls_socket_class = self;
 }
@@ -216,20 +215,20 @@
 	if (SSL_CTX_set_default_verify_paths(ctx) == 0)
 		@throw [OFInitializationFailedException
 		    exceptionWithClass: self];
 }
 
-- init
+- (instancetype)init
 {
 	self = [super init];
 
-	_certificateVerificationEnabled = true;
+	_verifiesCertificates = true;
 
 	return self;
 }
 
-- initWithSocket: (OFTCPSocket *)socket
+- (instancetype)initWithSocket: (OFTCPSocket *)socket
 {
 	self = [self init];
 
 	@try {
 		if ((_socket = dup(socket->_socket)) < 0)
@@ -281,11 +280,11 @@
 								  port: port
 								socket: self
 							      SSLError: error];
 	}
 
-	if (_certificateVerificationEnabled) {
+	if (_verifiesCertificates) {
 		X509_VERIFY_PARAM *param = SSL_get0_param(_SSL);
 
 		X509_VERIFY_PARAM_set_hostflags(param,
 		    X509_CHECK_FLAG_NO_PARTIAL_WILDCARDS);
 
@@ -378,24 +377,22 @@
 		     block: (of_tcp_socket_async_connect_block_t)block
 {
 	[super asyncConnectToHost: host
 			     port: port
 		      runLoopMode: runLoopMode
-			    block: ^ (OFTCPSocket *sock_, id exception) {
-		SSLSocket *sock = (SSLSocket *)sock_;
-
+			    block: ^ (id exception) {
 		if (exception == nil) {
 			@try {
-				[sock SSL_startTLSWithExpectedHost: host
+				[self SSL_startTLSWithExpectedHost: host
 							      port: port];
 			} @catch (id e) {
-				block(sock, e);
+				block(e);
 				return;
 			}
 		}
 
-		block(sock, exception);
+		block(exception);
 	}];
 }
 #endif
 
 - (instancetype)accept
@@ -409,11 +406,11 @@
 		/* FIXME: Get a proper errno */
 		@throw [OFAcceptFailedException exceptionWithSocket: self
 							      errNo: 0];
 	}
 
-	if (_requestClientCertificatesEnabled)
+	if (_requestsClientCertificates)
 		SSL_set_verify(client->_SSL, SSL_VERIFY_PEER, NULL);
 
 	SSL_set_accept_state(client->_SSL);
 
 	encoding = [OFLocale encoding];