diff --git a/src/THcHitList.cxx b/src/THcHitList.cxx
index e9527ac756ba7ee33e90800b0ff740782d2ec302..1cad33e55617598814179d329242e94cf9466c08 100644
--- a/src/THcHitList.cxx
+++ b/src/THcHitList.cxx
@@ -11,6 +11,8 @@
 //////////////////////////////////////////////////////////////////////////
 
 #include "THcHitList.h"
+#include "THaEvData.h"
+#include "THaDetMap.h"
 #include "TClonesArray.h"
 
 using namespace std;