diff --git a/tools/include/edm4hep2json.hxx b/tools/include/edm4hep2json.hxx
index a165a116e..50dbe0f3f 100644
--- a/tools/include/edm4hep2json.hxx
+++ b/tools/include/edm4hep2json.hxx
@@ -51,14 +51,11 @@
 #include <sstream>
 #include <vector>
 
-template<typename CollT>
-void insertIntoJson(nlohmann::json& jsonDict,
-                    const podio::CollectionBase* coll,
-                    const std::string& name) {
+template <typename CollT>
+void insertIntoJson(nlohmann::json& jsonDict, const podio::CollectionBase* coll, const std::string& name) {
   const auto* typedColl = static_cast<const CollT*>(coll); // safe to cast, since we have queried the type before
   nlohmann::json jsonColl{
-          {name,
-           {{"collection", *typedColl}, {"collID", coll->getID()}, {"collType", coll->getTypeName()}}}};
+      {name, {{"collection", *typedColl}, {"collID", coll->getID()}, {"collType", coll->getTypeName()}}}};
   jsonDict.insert(jsonColl.begin(), jsonColl.end());
 }