1 files changed, 1 insertions, 1 deletions
diff --git a/src/mbgl/style/conversion/function.cpp b/src/mbgl/style/conversion/function.cpp
index 5877d0eb7c..79ad2fc7d8 100644
--- a/src/mbgl/style/conversion/function.cpp
+++ b/src/mbgl/style/conversion/function.cpp
@@ -41,7 +41,7 @@ bool hasTokens(const std::string& source) {
 std::unique_ptr<Expression> convertTokenStringToFormatExpression(const std::string& source) {
     auto textExpression = convertTokenStringToExpression(source);
     std::vector<FormatExpressionSection> sections;
-    sections.emplace_back(std::move(textExpression), nullopt, nullopt);
+    sections.emplace_back(std::move(textExpression), nullopt, nullopt, nullopt);
     return std::make_unique<FormatExpression>(sections);
 }