diff --git a/clang/include/clang/InstallAPI/Context.h b/clang/include/clang/InstallAPI/Context.h
index b06168918a613..7d105920734fd 100644
--- a/clang/include/clang/InstallAPI/Context.h
+++ b/clang/include/clang/InstallAPI/Context.h
@@ -28,7 +28,7 @@ struct InstallAPIContext {
   llvm::Triple TargetTriple{};
 
   /// File Path of output location.
-  StringRef OutputLoc{};
+  llvm::StringRef OutputLoc{};
 
   /// What encoding to write output as.
   llvm::MachO::FileType FT = llvm::MachO::FileType::TBD_V5;