Index: /issm/trunk-jpl/src/m/classes/model.py
===================================================================
--- /issm/trunk-jpl/src/m/classes/model.py	(revision 25093)
+++ /issm/trunk-jpl/src/m/classes/model.py	(revision 25094)
@@ -783,8 +783,9 @@
 
         #giaivins
-        if not np.isnan(md.gia.mantle_viscosity).all():
-            md.gia.mantle_viscosity = project2d(md, md.gia.mantle_viscosity, 1)
-        if not np.isnan(md.gia.lithosphere_thickness).all():
-            md.gia.lithosphere_thickness = project2d(md, md.gia.lithosphere_thickness, 1)
+        if md.gia.__class__.__name__ == 'giaivins':
+            if not np.isnan(md.gia.mantle_viscosity).all():
+                md.gia.mantle_viscosity = project2d(md, md.gia.mantle_viscosity, 1)
+            if not np.isnan(md.gia.lithosphere_thickness).all():
+                md.gia.lithosphere_thickness = project2d(md, md.gia.lithosphere_thickness, 1)
 
         #elementstype