diff --git a/components/mpas-albany-landice/cime_config/buildnml b/components/mpas-albany-landice/cime_config/buildnml
index 62e8dbc92449..5f5caed83a80 100755
--- a/components/mpas-albany-landice/cime_config/buildnml
+++ b/components/mpas-albany-landice/cime_config/buildnml
@@ -69,12 +69,12 @@ def buildnml(case, caseroot, compname):
         decomp_prefix += 'mpasli.graph.info.'
     elif glc_grid == 'mpas.ais8to30km':
         grid_date += '20231222'
-        grid_prefix += 'ais8to30km'
+        grid_prefix += 'ais_8to30km'
         decomp_date += '240507'
         decomp_prefix += 'mpasli.graph.info.'
     elif glc_grid == 'mpas.ais4to20km':
         grid_date += '20230105'
-        grid_prefix += 'ais4to20km'
+        grid_prefix += 'ais_4to20km'
         decomp_date += '240507'
         decomp_prefix += 'mpasli.graph.info.'
     elif glc_grid == 'mpas.gis20km':