diff --git a/llvm/include/llvm/Support/Signals.h b/llvm/include/llvm/Support/Signals.h
index cbd6f686a778..dec5f5804fd9 100644
--- a/llvm/include/llvm/Support/Signals.h
+++ b/llvm/include/llvm/Support/Signals.h
@@ -36,7 +36,7 @@ namespace sys {
   /// signal delivery.
   void DontRemoveFileOnSignal(StringRef Filename);
 
-  /// When an error signal (such as SIBABRT or SIGSEGV) is delivered to the
+  /// When an error signal (such as SIGABRT or SIGSEGV) is delivered to the
   /// process, print a stack trace and then exit.
   /// \brief Print a stack trace if a fatal signal occurs.
   /// \param Argv0 the current binary name, used to find the symbolizer
diff --git a/llvm/lib/Support/Windows/Signals.inc b/llvm/lib/Support/Windows/Signals.inc
index 21dd2dd13754..23fc72ec10e2 100644
--- a/llvm/lib/Support/Windows/Signals.inc
+++ b/llvm/lib/Support/Windows/Signals.inc
@@ -503,7 +503,7 @@ void sys::DisableSystemDialogsOnCrash() {
   _set_error_mode(_OUT_TO_STDERR);
 }
 
-/// 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 sys::PrintStackTraceOnErrorSignal(StringRef Argv0,
                                        bool DisableCrashReporting) {