diff --git a/BaseLib/ConfigTree.h b/BaseLib/ConfigTree.h
index a7dde55dd14a1e963393d2d016203bfa10e31e69..96b72e4a396f8ec86e8071b348f34a0fd69ac004 100644
--- a/BaseLib/ConfigTree.h
+++ b/BaseLib/ConfigTree.h
@@ -15,6 +15,7 @@
 
 namespace BaseLib
 {
+using ConfigTree = boost::property_tree::ptree;
 
 boost::property_tree::ptree read_xml_config(
     boost::filesystem::path const& path);