diff --git a/openbr/plugins/template.cpp b/openbr/plugins/template.cpp
index 1b26511..b982fc5 100644
--- a/openbr/plugins/template.cpp
+++ b/openbr/plugins/template.cpp
@@ -107,7 +107,7 @@ class JSONTransform : public UntrainableMetaTransform
     void project(const Template &src, Template &dst) const
     {
         dst.file = src.file;
-        const QByteArray json = QJsonDocument(QJsonObject::fromVariantMap(src.file.localMetadata())).toJson(QJsonDocument::Compact);
+        const QByteArray json = QJsonDocument(QJsonObject::fromVariantMap(src.file.localMetadata())).toJson();
         dst += cv::Mat(1, json.size(), CV_8UC1, (void*) json.data());
     }
 };