diff --git a/ice_in b/ice_in
index fcf277a..86b9bab 100644
--- a/ice_in
+++ b/ice_in
@@ -6,7 +6,9 @@
   dump_last = .true.
   histfreq = "d", "m", "x", "x", "x"
   hist_time_axis = "middle"
+  history_deflate = 1
   history_precision = 8
+  restart_deflate = 1
   ice_ic = "./input/iced.1900-01-01-10800.nc"
   lcdf64 = .false.
   npt = 35040