1 files changed, 2 insertions, 0 deletions
diff --git a/clang/lib/Frontend/ChainedIncludesSource.cpp b/clang/lib/Frontend/ChainedIncludesSource.cpp
index dbb06bd23cd..5f7ff74bc6f 100644
--- a/clang/lib/Frontend/ChainedIncludesSource.cpp
+++ b/clang/lib/Frontend/ChainedIncludesSource.cpp
@@ -108,6 +108,8 @@ ChainedIncludesSource *ChainedIncludesSource::create(CompilerInstance &CI) {
     OwningPtr<ASTConsumer> consumer;
     consumer.reset(new PCHGenerator(Clang->getPreprocessor(), "-", 0,
                                     /*isysroot=*/"", &OS));
+    Clang->getPreprocessor().setPPMutationListener(
+                                            consumer->GetPPMutationListener());
     Clang->getASTContext().setASTMutationListener(
                                             consumer->GetASTMutationListener());
     Clang->setASTConsumer(consumer.take());