diff --git a/compass/landice/tests/slm/circ_icesheet/namelist.landice b/compass/landice/tests/slm/circ_icesheet/namelist.landice
index e654cc6ee..37851f0e0 100644
--- a/compass/landice/tests/slm/circ_icesheet/namelist.landice
+++ b/compass/landice/tests/slm/circ_icesheet/namelist.landice
@@ -7,7 +7,7 @@
 /
 &solidearth
     config_uplift_method = 'sealevelmodel'
-    config_slm_coupling_interval = '0001-00-00_00:00:00'
+    config_slm_coupling_interval = 5
     config_MALI_to_SLM_weights_file = 'mapping_file_mali_to_slm.nc'
     config_SLM_to_MALI_weights_file = 'mapping_file_slm_to_mali.nc'
 /