1 files changed, 9 insertions, 0 deletions
diff --git a/platform/android/src/style/android_conversion.hpp b/platform/android/src/style/android_conversion.hpp
index e2b2685928..082fe411e2 100644
--- a/platform/android/src/style/android_conversion.hpp
+++ b/platform/android/src/style/android_conversion.hpp
@@ -2,6 +2,7 @@
 
 #include "value.hpp"
 
+#include <mbgl/util/feature.hpp>
 #include <mbgl/util/logging.hpp>
 #include <mbgl/style/conversion.hpp>
 #include <mbgl/util/optional.hpp>
@@ -66,6 +67,14 @@ inline optional<float> toNumber(const mbgl::android::Value& value) {
     }
 }
 
+inline optional<double> toDouble(const mbgl::android::Value& value) {
+    if (value.isNumber()) {
+        return value.toDouble();
+    } else {
+        return {};
+    }
+}
+
 inline optional<std::string> toString(const mbgl::android::Value& value) {
     if (value.isString()) {
         return value.toString();