diff --git a/private/private.h b/private/private.h
index 2306fc0dd..dd09142d8 100644
--- a/private/private.h
+++ b/private/private.h
@@ -196,12 +196,10 @@ typedef void *dispatch_runloop_handle_t;
 #error "runloop support not implemented on this platform"
 #endif
 
-#if TARGET_OS_MAC
 API_AVAILABLE(macos(10.6), ios(4.0))
 DISPATCH_EXPORT DISPATCH_CONST DISPATCH_WARN_RESULT DISPATCH_NOTHROW
 dispatch_runloop_handle_t
 _dispatch_get_main_queue_port_4CF(void);
-#endif
 
 API_AVAILABLE(macos(10.12), ios(10.0), tvos(10.0), watchos(3.0))
 DISPATCH_EXPORT DISPATCH_NOTHROW
diff --git a/src/queue.c b/src/queue.c
index 7c33a324a..b7703f392 100644
--- a/src/queue.c
+++ b/src/queue.c
@@ -6368,13 +6368,11 @@ _dispatch_get_main_queue_handle_4CF(void)
 	return _dispatch_runloop_queue_get_handle(dq);
 }
 
-#if TARGET_OS_MAC
 dispatch_runloop_handle_t
 _dispatch_get_main_queue_port_4CF(void)
 {
 	return _dispatch_get_main_queue_handle_4CF();
 }
-#endif
 
 static bool main_q_is_draining;