diff --git a/src/Tool/Tool.h b/src/Tool/Tool.h
index b0a2cd5..83ef10f 100644
--- a/src/Tool/Tool.h
+++ b/src/Tool/Tool.h
@@ -54,9 +54,7 @@ namespace ToolFramework{
       return true;
     }
     void ExportConfiguration(){  ///< Export of local m_variables Store to matamodel vars for central exporting of configuration to data file.
-      std::string vars_json="";
-      m_variables>>vars_json;
-      reinterpret_cast<DataModelBase*>(m_data)->vars.Set(m_tool_name,vars_json);
+      reinterpret_cast<DataModelBase*>(m_data)->vars.Set(m_tool_name, m_variables);
     }
     
   private: