Index: /issm/trunk-jpl/src/m/classes/SMBd18opdd.py
===================================================================
--- /issm/trunk-jpl/src/m/classes/SMBd18opdd.py	(revision 19278)
+++ /issm/trunk-jpl/src/m/classes/SMBd18opdd.py	(revision 19279)
@@ -114,4 +114,4 @@
 			WriteData(fid,'object',self,'class','surfaceforcings','fieldname','precipitations_presentday','format','DoubleMat','mattype',1,'scale',1./yts,'timeserieslength',md.mesh.numberofvertices+1)
 			WriteData(fid,'object',self,'class','surfaceforcings','fieldname','delta18o','format','DoubleMat','mattype',1,'timeserieslength',2)
-			WriteData(fid,'object',self,'class','surfaceforcings','fieldname','dpermil','format','DoubleMat','mattype',1)
+			WriteData(fid,'object',self,'class','surfaceforcings','fieldname','dpermil','format','Double')
 	# }}}