Index: /issm/trunk-jpl/src/m/classes/diagnostic.m
===================================================================
--- /issm/trunk-jpl/src/m/classes/diagnostic.m	(revision 12944)
+++ /issm/trunk-jpl/src/m/classes/diagnostic.m	(revision 12945)
@@ -73,5 +73,5 @@
 			md = checkfield(md,'diagnostic.spcvy','forcing',1);
 			if md.mesh.dimension==3, md = checkfield(md,'diagnostic.spcvz','forcing',1); end
-			md = checkfield(md,'diagnostic.restol','size',[1 1],'>',0);
+			md = checkfield(md,'diagnostic.restol','size',[1 1],'>',0,'NaN',1);
 			md = checkfield(md,'diagnostic.reltol','size',[1 1]);
 			md = checkfield(md,'diagnostic.abstol','size',[1 1]);