diff --git a/components/clm/src/ED/main/FatesHistoryInterfaceMod.F90 b/components/clm/src/ED/main/FatesHistoryInterfaceMod.F90
index 3681f1d64a..568b9950d4 100644
--- a/components/clm/src/ED/main/FatesHistoryInterfaceMod.F90
+++ b/components/clm/src/ED/main/FatesHistoryInterfaceMod.F90
@@ -1343,22 +1343,22 @@ subroutine define_history_vars(this, initialize_variables)
          avgflag='A', vtype=patch_r8, hlms='CLM:ALM', flushval=0.0_r8, upfreq=1,    &
          ivar=ivar, initialize=initialize_variables, index = ih_canopy_spread_pa)
 
-    call this%set_history_var(vname='PFT_BIOMASS', units='gC/m2',                   &
+    call this%set_history_var(vname='PFTbiomass', units='gC/m2',                   &
          long='total PFT level biomass', use_default='active',                     &
          avgflag='A', vtype=site_pft_r8, hlms='CLM:ALM', flushval=0.0_r8, upfreq=1, &
          ivar=ivar, initialize=initialize_variables, index = ih_biomass_si_pft )
 
-    call this%set_history_var(vname='PFT_LEAF_BIOMASS', units='gC/m2',              &
+    call this%set_history_var(vname='PFTleafbiomass', units='gC/m2',              &
          long='total PFT level leaf biomass', use_default='active',                &
          avgflag='A', vtype=site_pft_r8, hlms='CLM:ALM', flushval=0.0_r8, upfreq=1, &
          ivar=ivar, initialize=initialize_variables, index = ih_leafbiomass_si_pft )
 
-    call this%set_history_var(vname='PFT_STORE_BIOMASS',  units='gC/m2',            &
+    call this%set_history_var(vname='PFTstorebiomass',  units='gC/m2',            &
          long='total PFT level stored biomass', use_default='active',              &
          avgflag='A', vtype=site_pft_r8, hlms='CLM:ALM', flushval=0.0_r8, upfreq=1, &
          ivar=ivar, initialize=initialize_variables, index = ih_storebiomass_si_pft )
     
-    call this%set_history_var(vname='PFT_N_INDIVS',  units='indiv / m2',            &
+    call this%set_history_var(vname='PFTnindivs',  units='indiv / m2',            &
          long='total PFT level number of individuals', use_default='active',       &
          avgflag='A', vtype=site_pft_r8, hlms='CLM:ALM', flushval=0.0_r8, upfreq=1, &
          ivar=ivar, initialize=initialize_variables, index = ih_nindivs_si_pft )