Index: /issm/trunk-jpl/src/m/classes/model.py
===================================================================
--- /issm/trunk-jpl/src/m/classes/model.py	(revision 25500)
+++ /issm/trunk-jpl/src/m/classes/model.py	(revision 25501)
@@ -419,5 +419,5 @@
             md2.mesh.vertexconnectivity = NodeConnectivity(md2.mesh.elements2d, md2.mesh.numberofvertices2d)
             md2.mesh.elementconnectivity = ElementConnectivity(md2.mesh.elements2d, md2.mesh.vertexconnectivity)
-            msegments = contourenvelope(md2.mesh)
+            segments = contourenvelope(md2.mesh)
             md2.mesh.vertexonboundary = np.zeros(int(numberofvertices2 / md2.mesh.numberoflayers), bool)
             md2.mesh.vertexonboundary[segments[:, 0:2] - 1] = True