diff --git a/clang/include/clang/Frontend/CompilerInstance.h b/clang/include/clang/Frontend/CompilerInstance.h
index 31a0d098a21d..6ac6b4337098 100644
--- a/clang/include/clang/Frontend/CompilerInstance.h
+++ b/clang/include/clang/Frontend/CompilerInstance.h
@@ -250,6 +250,9 @@ public:
     return Invocation->getDiagnosticOpts();
   }
 
+  FileSystemOptions &getFileSystemOpts() {
+    return Invocation->getFileSystemOpts();
+  }
   const FileSystemOptions &getFileSystemOpts() const {
     return Invocation->getFileSystemOpts();
   }