diff --git a/src/ffi.rs b/src/ffi.rs
index 91dad6f..4b7ac71 100644
--- a/src/ffi.rs
+++ b/src/ffi.rs
@@ -25,9 +25,9 @@ pub type dispatch_time_t = u64;
 // dispatch_io_interval_flags_t
 pub type dispatch_queue_attr_t = *const dispatch_object_s;
 
-#[cfg_attr(any(target_os = "macos", target_os = "ios"),
+#[cfg_attr(target_vendor = "apple",
            link(name = "System", kind = "dylib"))]
-#[cfg_attr(not(any(target_os = "macos", target_os = "ios")),
+#[cfg_attr(not(target_vendor = "apple"),
            link(name = "dispatch", kind = "dylib"))]
 extern {
     static _dispatch_main_q: dispatch_object_s;