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-rw-r--r--src/mbgl/style/expression/collator.cpp4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/mbgl/style/expression/collator.cpp b/src/mbgl/style/expression/collator.cpp
index 185d713150..a5dbc614af 100644
--- a/src/mbgl/style/expression/collator.cpp
+++ b/src/mbgl/style/expression/collator.cpp
@@ -4,8 +4,8 @@ namespace mbgl {
namespace style {
namespace expression {
-Collator::Collator(bool caseSensitive, bool diacriticSensitive, optional<std::string> locale)
- : collator(platform::Collator(caseSensitive, diacriticSensitive, std::move(locale))) {}
+Collator::Collator(bool caseSensitive, bool diacriticSensitive, const optional<std::string>& locale)
+ : collator(platform::Collator(caseSensitive, diacriticSensitive, locale)) {}
bool Collator::operator==(const Collator& other) const {
return collator == other.collator;