diff --git a/src/utils/refcntr.h b/src/utils/refcntr.h
index 870d3008..fbc6d8ac 100644
--- a/src/utils/refcntr.h
+++ b/src/utils/refcntr.h
@@ -50,6 +50,7 @@ public:
     const X *getconstptr() const {return rep;}
     int getcnt() const {return pcount ? *pcount : 0;}
     bool isNull() const {return rep == 0;}
+    bool isNotNull() const {return rep != 0;}
 };