diff --git a/DDCore/include/JSON/config.h b/DDCore/include/JSON/config.h
index 4c3895e75d7dd5233ae7c94c947c7f223b85619b..1036aeb453d4a3158a9cfb61e3a37e7f4fca6374 100644
--- a/DDCore/include/JSON/config.h
+++ b/DDCore/include/JSON/config.h
@@ -15,8 +15,8 @@
 
 #define DD4HEP_USE_BOOST_JSON 1
 
-#include <boost/property_tree/json_parser.hpp>
-#include <boost/property_tree/ptree.hpp>
+#include "boost/property_tree/json_parser.hpp"
+#include "boost/property_tree/ptree.hpp"
 
 /// Namespace for the AIDA detector description toolkit
 namespace DD4hep {