diff --git a/parm/soca/varchange/soca_2cice_antarctic.yaml b/parm/soca/varchange/soca_2cice_antarctic.yaml
index 08259a35d..59c1051ce 100644
--- a/parm/soca/varchange/soca_2cice_antarctic.yaml
+++ b/parm/soca/varchange/soca_2cice_antarctic.yaml
@@ -12,7 +12,7 @@ variable change:
   variable change name: Soca2Cice
   do inverse: false
   seaice edge: 0.9
-  shuffle: true
+  shuffle: false  # seg. fault when true 
   rescale prior:
     min hice: 0.5
     min hsno: 0.1