diff --git a/third_party/txt/src/skia/paragraph_skia.cc b/third_party/txt/src/skia/paragraph_skia.cc
index 228702875b74e..4831f8456d7db 100644
--- a/third_party/txt/src/skia/paragraph_skia.cc
+++ b/third_party/txt/src/skia/paragraph_skia.cc
@@ -171,7 +171,7 @@ std::vector<Paragraph::TextBox> ParagraphSkia::GetRectsForRange(
       static_cast<skt::RectWidthStyle>(rect_width_style));
 
   std::vector<Paragraph::TextBox> boxes;
-  for (const skt::TextBox skia_box : skia_boxes) {
+  for (const skt::TextBox& skia_box : skia_boxes) {
     boxes.emplace_back(skia_box.rect,
                        static_cast<TextDirection>(skia_box.direction));
   }
@@ -183,7 +183,7 @@ std::vector<Paragraph::TextBox> ParagraphSkia::GetRectsForPlaceholders() {
   std::vector<skt::TextBox> skia_boxes = paragraph_->getRectsForPlaceholders();
 
   std::vector<Paragraph::TextBox> boxes;
-  for (const skt::TextBox skia_box : skia_boxes) {
+  for (const skt::TextBox& skia_box : skia_boxes) {
     boxes.emplace_back(skia_box.rect,
                        static_cast<TextDirection>(skia_box.direction));
   }