diff --git a/Framework/DataObjects/inc/MantidDataObjects/MDHistoWorkspace.h b/Framework/DataObjects/inc/MantidDataObjects/MDHistoWorkspace.h
index 2b4fcd178c1f41f3d3b1d5156f7ffa3867b5c35f..8284af3e4ae05685c9900bb7c6129877119fc19d 100644
--- a/Framework/DataObjects/inc/MantidDataObjects/MDHistoWorkspace.h
+++ b/Framework/DataObjects/inc/MantidDataObjects/MDHistoWorkspace.h
@@ -426,7 +426,7 @@ private:
   }
 
   MDHistoWorkspace *doCloneEmpty() const override {
-    return new MDHistoWorkspace(0);
+    return new MDHistoWorkspace(nullptr);
   }
 
   void makeSingleBinWithNaN(std::vector<coord_t> &x, std::vector<signal_t> &y,