diff --git a/src/meshlabplugins/filter_plymc/simplemeshprovider.h b/src/meshlabplugins/filter_plymc/simplemeshprovider.h
index 10ae8451f..3f4b611e1 100644
--- a/src/meshlabplugins/filter_plymc/simplemeshprovider.h
+++ b/src/meshlabplugins/filter_plymc/simplemeshprovider.h
@@ -118,6 +118,7 @@ template<class TriMeshType>
         meshnames.push_back(meshName);
         WV.push_back(1);
         BBV.push_back(Box3f());
+		return true;
     }
 
     vcg::Box3f bb(int i) {return BBV[i];}