diff --git a/llvm/lib/Support/Signals.cpp b/llvm/lib/Support/Signals.cpp
index 45f9c69282a8..333f492d4589 100644
--- a/llvm/lib/Support/Signals.cpp
+++ b/llvm/lib/Support/Signals.cpp
@@ -157,7 +157,7 @@ static bool printSymbolizedStackTrace(StringRef Argv0, void **StackTrace,
   }
 
   Optional<StringRef> Redirects[] = {StringRef(InputFile),
-                                     StringRef(OutputFile), ""};
+                                     StringRef(OutputFile), StringRef("")};
   StringRef Args[] = {"llvm-symbolizer", "--functions=linkage", "--inlining",
 #ifdef _WIN32
                       // Pass --relative-address on Windows so that we don't