1 files changed, 3 insertions, 2 deletions
diff --git a/src/mbgl/layout/symbol_feature.hpp b/src/mbgl/layout/symbol_feature.hpp
index 3b4eb78d86..fa5af97861 100644
--- a/src/mbgl/layout/symbol_feature.hpp
+++ b/src/mbgl/layout/symbol_feature.hpp
@@ -1,6 +1,7 @@
 #pragma once
 
 #include <mbgl/tile/geometry_tile_data.hpp>
+#include <mbgl/util/optional.hpp>
 
 #include <string>
 
@@ -9,8 +10,8 @@ namespace mbgl {
 class SymbolFeature {
 public:
     GeometryCollection geometry;
-    std::u32string label;
-    std::string sprite;
+    optional<std::u32string> label;
+    optional<std::string> sprite;
     std::size_t index;
 };