diff --git a/js/fea/DmaCellOther.js b/js/fea/DmaCellOther.js
index 38434f5c0d8636dc7ac4cc0540f2ac073ac99703..190973b580914d14c1868e9e44c89e2e7b5e50ee 100644
--- a/js/fea/DmaCellOther.js
+++ b/js/fea/DmaCellOther.js
@@ -56,9 +56,9 @@ var cellMaterial = [new THREE.MeshNormalMaterial()];
     unitCellGeo.computeFaceNormals();
 
     function DMATruncCubeCell(indices, scale){
-        DMACell.call(this, indices, scale, true);
+        DMAInverseCell.call(this, indices, scale);
     }
-    DMATruncCubeCell.prototype = Object.create(DMACell.prototype);
+    DMATruncCubeCell.prototype = Object.create(DMAInverseCell.prototype);
 
     DMATruncCubeCell.prototype._buildCellMesh = function(){//abstract mesh representation of cell
         var mesh = DMACell.prototype._buildCellMesh.call(this, unitCellGeo, cellMaterial);