diff --git a/lib/Support/Unix/Signals.inc b/lib/Support/Unix/Signals.inc
index fade9069ba7..e286869e775 100644
--- a/lib/Support/Unix/Signals.inc
+++ b/lib/Support/Unix/Signals.inc
@@ -274,6 +274,9 @@ void llvm::sys::PrintStackTraceOnErrorSignal() {
 
 #ifdef __APPLE__
 
+#include <signal.h>
+#include <pthread.h>
+
 int raise(int sig) {
   return pthread_kill(pthread_self(), sig);
 }
@@ -291,9 +294,6 @@ void __assert_rtn(const char *func,
   abort();
 }
 
-#include <signal.h>
-#include <pthread.h>
-
 void abort() {
   raise(SIGABRT);
   usleep(1000);