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-rw-r--r--platform/darwin/src/local_glyph_rasterizer.mm2
1 files changed, 1 insertions, 1 deletions
diff --git a/platform/darwin/src/local_glyph_rasterizer.mm b/platform/darwin/src/local_glyph_rasterizer.mm
index 14cee5063e..6ff346873a 100644
--- a/platform/darwin/src/local_glyph_rasterizer.mm
+++ b/platform/darwin/src/local_glyph_rasterizer.mm
@@ -88,7 +88,7 @@ private:
CTFontRef fontHandle;
};
-LocalGlyphRasterizer::LocalGlyphRasterizer(const optional<std::string> fontFamily)
+LocalGlyphRasterizer::LocalGlyphRasterizer(const optional<std::string>& fontFamily)
: impl(std::make_unique<Impl>(fontFamily))
{}