Index: /issm/trunk-jpl/src/c/analyses/StressbalanceSIAAnalysis.cpp
===================================================================
--- /issm/trunk-jpl/src/c/analyses/StressbalanceSIAAnalysis.cpp	(revision 19530)
+++ /issm/trunk-jpl/src/c/analyses/StressbalanceSIAAnalysis.cpp	(revision 19531)
@@ -418,5 +418,5 @@
 	Input* drag_input      = NULL;
 	Friction* friction     = NULL;
-	if(frictionlaw!=5){
+	if(frictionlaw!=5 && frictionlaw!=1){
 		drag_input = element->GetInput(FrictionCoefficientEnum);  _assert_(drag_input);
 	}