diff --git a/Calo/CaloTools/src/XGBClassifierPhPi0.h b/Calo/CaloTools/src/XGBClassifierPhPi0.h
index 2dfdd14ca7fab5e8a181ce42215d52435d0bee2a..f6f1016efb1117a5184660a68a5a2a4998a127bf 100644
--- a/Calo/CaloTools/src/XGBClassifierPhPi0.h
+++ b/Calo/CaloTools/src/XGBClassifierPhPi0.h
@@ -3,7 +3,7 @@
 
 #include <string>
 #include <vector>
-#include "include/xgboost/c_api.h"
+#include "xgboost/c_api.h"
 #include "GaudiKernel/ServiceHandle.h"
 #include "GaudiKernel/IMessageSvc.h"
 #include "GaudiKernel/MsgStream.h"