diff --git a/lib/System/Unix/Signals.inc b/lib/System/Unix/Signals.inc
index dcbda4e008d..997d4781d86 100644
--- a/lib/System/Unix/Signals.inc
+++ b/lib/System/Unix/Signals.inc
@@ -275,7 +275,7 @@ void llvm::sys::PrintStackTraceOnErrorSignal() {
 #ifdef __APPLE__
 
 int raise(int sig) {
-  return pthread_kill(pthread_self(), SIGABRT);
+  return pthread_kill(pthread_self(), sig);
 }
 
 void __assert_rtn(const char *func,