diff --git a/reco/eventbuilder/digis/CbmBuildEventsQA.h b/reco/eventbuilder/digis/CbmBuildEventsQA.h
index add49b894c2392cb82731b51d0b64bffc0d98c7d..69fb4636c734e27f70062df82bd33c0860ad274b 100644
--- a/reco/eventbuilder/digis/CbmBuildEventsQA.h
+++ b/reco/eventbuilder/digis/CbmBuildEventsQA.h
@@ -9,6 +9,8 @@
 
 #include <FairTask.h>
 
+#include <TFolder.h>
+
 class TClonesArray;
 class TH1F;
 class CbmDigiManager;