diff --git a/tree/dataframe/inc/ROOT/RDataFrame.hxx b/tree/dataframe/inc/ROOT/RDataFrame.hxx
index 6c210ede22564526bab820394cb4a2db49f1e28d..7a094cc01fb6797ef7535688e10740f09727e798 100644
--- a/tree/dataframe/inc/ROOT/RDataFrame.hxx
+++ b/tree/dataframe/inc/ROOT/RDataFrame.hxx
@@ -23,6 +23,7 @@ ROOT's RDataFrame allows to analyse data stored in TTrees with a high level inte
 #include "ROOT/RStringView.hxx"
 #include "RtypesCore.h"
 
+#include <initializer_list>
 #include <memory>
 #include <string>
 #include <vector>