diff --git a/Telegram/SourceFiles/kotato/json_settings.cpp b/Telegram/SourceFiles/kotato/json_settings.cpp
index 99701f178..0ea35e449 100644
--- a/Telegram/SourceFiles/kotato/json_settings.cpp
+++ b/Telegram/SourceFiles/kotato/json_settings.cpp
@@ -146,6 +146,17 @@ bool ReadStringOption(QJsonObject obj, QString key, std::function<void(QString)>
 	return (readValueResult && readResult);
 }
 
+bool ReadDoubleOption(QJsonObject obj, QString key, std::function<void(double)> callback) {
+	auto readResult = false;
+	auto readValueResult = ReadOption(obj, key, [&](QJsonValue v) {
+		if (v.isDouble()) {
+			callback(v.toDouble());
+			readResult = true;
+		}
+	});
+	return (readValueResult && readResult);
+}
+
 bool ReadIntOption(QJsonObject obj, QString key, std::function<void(int)> callback) {
 	auto readResult = false;
 	auto readValueResult = ReadOption(obj, key, [&](QJsonValue v) {