diff --git a/clang-tools-extra/clangd/Hover.cpp b/clang-tools-extra/clangd/Hover.cpp
index dda5ad36e9b89c..8b220184114047 100644
--- a/clang-tools-extra/clangd/Hover.cpp
+++ b/clang-tools-extra/clangd/Hover.cpp
@@ -963,7 +963,7 @@ void maybeAddCalleeArgInfo(const SelectionTree::Node *N, HoverInfo &HI,
 } // namespace
 
 llvm::Optional<HoverInfo> getHover(ParsedAST &AST, Position Pos,
-                                   format::FormatStyle Style,
+                                   const format::FormatStyle &Style,
                                    const SymbolIndex *Index) {
   PrintingPolicy PP =
       getPrintingPolicy(AST.getASTContext().getPrintingPolicy());
diff --git a/clang-tools-extra/clangd/Hover.h b/clang-tools-extra/clangd/Hover.h
index 7478ede88a46c6..1a46ff5ad772b5 100644
--- a/clang-tools-extra/clangd/Hover.h
+++ b/clang-tools-extra/clangd/Hover.h
@@ -137,7 +137,7 @@ inline bool operator==(const HoverInfo::Param &LHS,
 
 /// Get the hover information when hovering at \p Pos.
 llvm::Optional<HoverInfo> getHover(ParsedAST &AST, Position Pos,
-                                   format::FormatStyle Style,
+                                   const format::FormatStyle &Style,
                                    const SymbolIndex *Index);
 
 } // namespace clangd