1 files changed, 1 insertions, 1 deletions
diff --git a/include/clang/Tooling/CommonOptionsParser.h b/include/clang/Tooling/CommonOptionsParser.h
index 1e8462c631c3e..3d630c5f7609c 100644
--- a/include/clang/Tooling/CommonOptionsParser.h
+++ b/include/clang/Tooling/CommonOptionsParser.h
@@ -98,7 +98,7 @@ public:
   }
 
   /// Returns a list of source file paths to process.
-  std::vector<std::string> getSourcePathList() {
+  const std::vector<std::string> &getSourcePathList() const {
     return SourcePathList;
   }