diff --git a/testinput_tier_1/inputs/ufs_c48_coldstart/model_configure b/testinput_tier_1/inputs/ufs_c48_coldstart/model_configure
index b2337567..2c3063f8 100644
--- a/testinput_tier_1/inputs/ufs_c48_coldstart/model_configure
+++ b/testinput_tier_1/inputs/ufs_c48_coldstart/model_configure
@@ -9,7 +9,7 @@ nhours_fcst:             6
 fhrot:                   6
 
 dt_atmos:                1200
-restart_interval:        6
+restart_interval:        6,-1
 output_1st_tstep_rst:    .true.
 
 quilting:                .false.
diff --git a/testinput_tier_1/inputs/ufs_c48_warmstart/model_configure b/testinput_tier_1/inputs/ufs_c48_warmstart/model_configure
index 7be1c1aa..10b1bca8 100644
--- a/testinput_tier_1/inputs/ufs_c48_warmstart/model_configure
+++ b/testinput_tier_1/inputs/ufs_c48_warmstart/model_configure
@@ -9,7 +9,7 @@ nhours_fcst:             24
 fhrot:                   6
 
 dt_atmos:                1200
-restart_interval:        6
+restart_interval:        6,-1
 output_1st_tstep_rst:    .false.
 
 quilting:                .false.