Index: src/tls/OFSecureTransportTLSStream.h
==================================================================
--- src/tls/OFSecureTransportTLSStream.h
+++ src/tls/OFSecureTransportTLSStream.h
@@ -13,15 +13,17 @@
  * file.
  */
 
 #import "OFTLSStream.h"
 
+#include <Security/SecureTransport.h>
+
 OF_ASSUME_NONNULL_BEGIN
 
 @interface OFSecureTransportTLSStream: OFTLSStream <OFStreamDelegate>
 {
-	struct SSLContext *_context;
+	SSLContextRef _context;
 	OFString *_host;
 }
 @end
 
 OF_ASSUME_NONNULL_END

Index: src/tls/OFSecureTransportTLSStream.m
==================================================================
--- src/tls/OFSecureTransportTLSStream.m
+++ src/tls/OFSecureTransportTLSStream.m
@@ -15,12 +15,10 @@
 
 #include "config.h"
 
 #import "OFSecureTransportTLSStream.h"
 
-#include <Security/SecureTransport.h>
-
 #import "OFAlreadyConnectedException.h"
 #import "OFNotOpenException.h"
 #import "OFReadFailedException.h"
 #import "OFTLSHandshakeFailedException.h"
 #import "OFWriteFailedException.h"