diff --git a/bld/namelist_files/namelist_defaults_cam.xml b/bld/namelist_files/namelist_defaults_cam.xml
index 9f840aba4d..7150acc89f 100644
--- a/bld/namelist_files/namelist_defaults_cam.xml
+++ b/bld/namelist_files/namelist_defaults_cam.xml
@@ -264,10 +264,10 @@
 
 <ncdata dyn="se" hgrid="ne0np4CONUS.ne30x8"       nlev="70" ic_ymd="101">atm/waccm/ic/FW2000_CONUS_30x8_L70_01-01-0001_c200602.nc</ncdata>
 
-<ncdata hgrid="mpasa480" nlev="32" >atm/cam/inic/mpas/cami_01-01-2000_00Z_mpasa480_L32_CFSR_c211013.nc</ncdata>
-<ncdata hgrid="mpasa120" nlev="32" >atm/cam/inic/mpas/cami_01-01-2000_00Z_mpasa120_L32_CFSR_c210426.nc</ncdata>
-<ncdata hgrid="mpasa60"  nlev="32" >atm/cam/inic/mpas/cami_01-01-2000_00Z_mpasa60_L32_CFSR_c210518.nc</ncdata>
-<ncdata hgrid="mpasa30"  nlev="32" >atm/cam/inic/mpas/cami_01-01-2000_00Z_mpasa30_L32_CFSR_230302.nc</ncdata>
+<ncdata hgrid="mpasa480" nlev="32" ic_ymd="20000101" >atm/cam/inic/mpas/cami_01-01-2000_00Z_mpasa480_L32_CFSR_c211013.nc</ncdata>
+<ncdata hgrid="mpasa120" nlev="32" ic_ymd="20000101" >atm/cam/inic/mpas/cami_01-01-2000_00Z_mpasa120_L32_CFSR_c210426.nc</ncdata>
+<ncdata hgrid="mpasa60"  nlev="32" ic_ymd="20000101" >atm/cam/inic/mpas/cami_01-01-2000_00Z_mpasa60_L32_CFSR_c210518.nc</ncdata>
+<ncdata hgrid="mpasa30"  nlev="32" ic_ymd="20000101" >atm/cam/inic/mpas/cami_01-01-2000_00Z_mpasa30_L32_CFSR_230302.nc</ncdata>
 
 <!-- Topography -->
 <bnd_topo hgrid="256x512" >atm/cam/topo/topo-from-cami_0000-01-01_256x512_L26_c030918.nc</bnd_topo>