1 files changed, 1 insertions, 1 deletions
diff --git a/signal.c b/signal.c
index e946337ae7..bd0313bfdd 100644
--- a/signal.c
+++ b/signal.c
@@ -567,7 +567,7 @@ sigbus(int sig SIGINFO_ARG)
  * and it's delivered as SIGBUS instaed of SIGSEGV to userland. It's crazy
  * wrong IMHO. but anyway we have to care it. Sigh.
  */
-#if defined __MACH__ && defined __APPLE__ && defined USE_SIGALTSTACK
+#if defined __APPLE__ && defined USE_SIGALTSTACK
     int ruby_stack_overflowed_p(const rb_thread_t *, const void *);
     NORETURN(void ruby_thread_stack_overflow(rb_thread_t *th));
     rb_thread_t *th = GET_THREAD();