diff --git a/bld/namelist_files/namelist_defaults_ctsm.xml b/bld/namelist_files/namelist_defaults_ctsm.xml
index 60366149c0..7c5d19eeaa 100644
--- a/bld/namelist_files/namelist_defaults_ctsm.xml
+++ b/bld/namelist_files/namelist_defaults_ctsm.xml
@@ -987,7 +987,7 @@ attributes from the config_cache.xml file (with keys converted to upper-case).
 <finidat hgrid="ne30np4.pg3"  maxpft="79"  mask="gx1v7" use_cn=".true." use_cndv=".false." use_fates=".false."
          ic_ymd="18500101" sim_year="1850" do_transient_pfts=".false."
          ic_tod="0" glc_nec="10" use_crop=".true." irrigate=".false."
-         lnd_tuning_mode="clm5_1_cam6.0" use_init_interp=".true."
+         lnd_tuning_mode="clm5_1_cam6.0"
 >lnd/clm2/initdata_map/clmi.I1850Clm51CplhistBgcCrop-ciso.0561-01-01.ne30np4.pg3_gx1v7_simyr1850_c231109.nc
 </finidat>