diff --git a/include/llvm/Support/Host.h b/include/llvm/Support/Host.h
index 28c4cc790fe..8f4bf3c1ba5 100644
--- a/include/llvm/Support/Host.h
+++ b/include/llvm/Support/Host.h
@@ -55,7 +55,7 @@ namespace sys {
   /// target which matches the host.
   ///
   /// \return - The host CPU name, or empty if the CPU could not be determined.
-  std::string getHostCPUName();
+  StringRef getHostCPUName();
 
   /// getHostCPUFeatures - Get the LLVM names for the host CPU features.
   /// The particular format of the names are target dependent, and suitable for
diff --git a/lib/Support/Host.cpp b/lib/Support/Host.cpp
index b423ada6fa1..d883c058872 100644
--- a/lib/Support/Host.cpp
+++ b/lib/Support/Host.cpp
@@ -193,7 +193,7 @@ static void DetectX86FamilyModel(unsigned EAX, unsigned &Family,
   }
 }
 
-std::string sys::getHostCPUName() {
+StringRef sys::getHostCPUName() {
   unsigned EAX = 0, EBX = 0, ECX = 0, EDX = 0;
   if (GetX86CpuIDAndInfo(0x1, &EAX, &EBX, &ECX, &EDX))
     return "generic";