diff --git a/bld/env_run.xml b/bld/env_run.xml
index f3b7467168..cd865ad82c 100644
--- a/bld/env_run.xml
+++ b/bld/env_run.xml
@@ -9,6 +9,7 @@ Sample env_run.xml file that allows build-namelist to be run for testing in this
 -->
 <entry id="DIN_LOC_ROOT"         value="MYDINLOCROOT"  /> 
 <entry id="GLC_TWO_WAY_COUPLING" value="FALSE"         /> 
+<entry id="LND_SETS_DUST_EMIS_DRV_FLDS" value="TRUE"   /> 
 <entry id="NEONSITE"             value=""              /> 
 
 </config_definition>
diff --git a/python/ctsm/lilac_make_runtime_inputs.py b/python/ctsm/lilac_make_runtime_inputs.py
index 71f3c9bbe4..33b87c543e 100644
--- a/python/ctsm/lilac_make_runtime_inputs.py
+++ b/python/ctsm/lilac_make_runtime_inputs.py
@@ -47,6 +47,12 @@
       <valid_values>TRUE,FALSE</valid_values>
     </entry>
   </group>
+  <group id="run_cpl">
+    <entry id="LND_SETS_DUST_EMIS_DRV_FLDS" value="TRUE">
+      <type>logical</type>
+      <valid_values>TRUE,FALSE</valid_values>
+    </entry>
+  </group>
 </file>
 """