diff --git a/lib/Support/Unix/Signals.inc b/lib/Support/Unix/Signals.inc
index 519511685dd..aac0408ce76 100644
--- a/lib/Support/Unix/Signals.inc
+++ b/lib/Support/Unix/Signals.inc
@@ -293,7 +293,7 @@ static void PrintStackTrace(void *) {
 #endif
 }
 
-/// PrintStackTraceOnErrorSignal - When an error signal (such as SIBABRT or
+/// PrintStackTraceOnErrorSignal - When an error signal (such as SIGABRT or
 /// SIGSEGV) is delivered to the process, print a stack trace and then exit.
 void llvm::sys::PrintStackTraceOnErrorSignal() {
   AddSignalHandler(PrintStackTrace, 0);