1 files changed, 1 insertions, 1 deletions
diff --git a/clang/lib/Frontend/PrecompiledPreamble.cpp b/clang/lib/Frontend/PrecompiledPreamble.cpp
index d6418645856..59467c3c41b 100644
--- a/clang/lib/Frontend/PrecompiledPreamble.cpp
+++ b/clang/lib/Frontend/PrecompiledPreamble.cpp
@@ -377,7 +377,7 @@ llvm::ErrorOr<PrecompiledPreamble> PrecompiledPreamble::Build(
           PrecompiledPreamble::PreambleFileHash::createForFile(File->getSize(),
                                                                ModTime);
     } else {
-      llvm::MemoryBuffer *Buffer = SourceMgr.getMemoryBufferForFile(File);
+      const llvm::MemoryBuffer *Buffer = SourceMgr.getMemoryBufferForFile(File);
       FilesInPreamble[File->getName()] =
           PrecompiledPreamble::PreambleFileHash::createForMemoryBuffer(Buffer);
     }