diff --git a/src/unix/core.c b/src/unix/core.c
index c3812d2d..949eefae 100644
--- a/src/unix/core.c
+++ b/src/unix/core.c
@@ -519,7 +519,7 @@ int uv__close_nocancel(int fd) {
 #if defined(__APPLE__)
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wdollar-in-identifier-extension"
-#if defined(__LP64__) || defined(TARGET_OS_IPHONE)
+#if defined(__LP64__) || TARGET_OS_IPHONE
   extern int close$NOCANCEL(int);
   return close$NOCANCEL(fd);
 #else