diff --git a/services/backup/docker-server/contents/server/src/Reactors/server/SendLogReactor.h b/services/backup/docker-server/contents/server/src/Reactors/server/SendLogReactor.h
--- a/services/backup/docker-server/contents/server/src/Reactors/server/SendLogReactor.h
+++ b/services/backup/docker-server/contents/server/src/Reactors/server/SendLogReactor.h
@@ -46,6 +46,7 @@
   std::shared_ptr<reactor::BlobPutClientReactor> putReactor;
   ServiceBlobClient blobClient;
   void storeInDatabase();
+  std::string generateHolder();
   std::string generateLogID();
   void initializePutReactor();
 
@@ -72,6 +73,11 @@
   database::DatabaseManager::getInstance().putLogItem(logItem);
 }
 
+std::string SendLogReactor::generateHolder() {
+  // TODO replace mock
+  return generateRandomString();
+}
+
 std::string SendLogReactor::generateLogID() {
   // TODO replace mock
   return generateRandomString();