diff --git a/dyn_em/module_initialize_real.F b/dyn_em/module_initialize_real.F
index 275157b4e4..9fd521a74b 100644
--- a/dyn_em/module_initialize_real.F
+++ b/dyn_em/module_initialize_real.F
@@ -2744,7 +2744,8 @@ SUBROUTINE init_domain_rk ( grid &
                  .OR. (config_flags%mp_physics .EQ. TEMPO .AND. config_flags%tempo_aerosolaware .EQ. 1) &
                  .OR. config_flags%mp_physics .EQ. RCON_MP_SCHEME) .and. &
                      config_flags%wif_input_opt .EQ. 0 ) THEN
-               CALL wrf_error_fatal ('wif_input_opt=0 but mp_physics=28 or mp_physics=29' )
+               CALL wrf_error_fatal ( & 
+               'wif_input_opt=0 but mp_physics=28, 29, or 88' )
             END IF if_thompsonaero_3d
 
 !=========================================================================================