Fix compilation with Root 6.22

davidrohr · davidrohr · commit 147e5c0dfe44 · 2020-07-29T22:37:30.000+02:00
diff --git a/include/MCStepLogger/ROOTIOUtilities.h b/include/MCStepLogger/ROOTIOUtilities.h
@@ -21,6 +21,7 @@
 #include "TFile.h"
 #include "TTree.h"
 #include "TBranch.h"
+#include "TKey.h"
 
 namespace o2
 {
