diff --git a/reco/eventbuilder/CbmEventBuilderLinkDef.h b/reco/eventbuilder/CbmEventBuilderLinkDef.h
index dff0084b343f62ddcd417d1fd4e88d94d437d367..a62bc57b8e07f1bd803cabbf4c565f597fe6b9d7 100644
--- a/reco/eventbuilder/CbmEventBuilderLinkDef.h
+++ b/reco/eventbuilder/CbmEventBuilderLinkDef.h
@@ -10,7 +10,7 @@
 #pragma link C++ class CbmEventBuilderQA + ;
 #pragma link C++ class CbmBuildEventsIdeal + ;
 #pragma link C++ class CbmBuildEventsIdealNew + ;
-//#pragma link C++ class CbmBuildEventsQa+;
+#pragma link C++ class CbmBuildEventsQA+;
 #pragma link C++ class CbmBuildEventsSimple + ;
 //#pragma link C++ class CbmEvBuildSource+;