diff --git a/moment_kinetics/test/fokker_planck_time_evolution_tests.jl b/moment_kinetics/test/fokker_planck_time_evolution_tests.jl
index 5a0567091..544a5fafa 100644
--- a/moment_kinetics/test/fokker_planck_time_evolution_tests.jl
+++ b/moment_kinetics/test/fokker_planck_time_evolution_tests.jl
@@ -249,8 +249,6 @@ test_input_gauss_legendre = Dict("run_name" => "gausslegendre_pseudospectral",
                               "vperp_discretization" => "gausslegendre_pseudospectral",
                               "ionization_frequency" => 0.0,
                               "charge_exchange_frequency" => 0.0,
-                              "constant_ionization_rate" => false,
-                              "electron_physics" => "boltzmann_electron_response",
                               "fokker_planck_collisions" => OptionsDict("use_fokker_planck" => true, "nuii" => 1.0, "frequency_option" => "manual"),
                               "evolve_moments_parallel_pressure" => false,
                               "evolve_moments_conservation" => false,
diff --git a/util/precompile_run.jl b/util/precompile_run.jl
index 1ce0a69d1..41f6b1d57 100644
--- a/util/precompile_run.jl
+++ b/util/precompile_run.jl
@@ -94,7 +94,7 @@ kinetic_electron_input = merge(cheb_input, Dict("evolve_moments_density" => true
                                                 "vzeta_nelement" => 1,
                                                 "vr_ngrid" => 1,
                                                 "vr_nelement" => 1,
-                                                "electron_physics" => "kinetic_electrons",
+                                                "composition" => OptionsDict("electron_physics" => "kinetic_electrons"),
                                                 "electron_timestepping" => OptionsDict("nstep" => 1,
                                                                                             "dt" => 2.0e-11,
                                                                                             "initialization_residual_value" => 1.0e10,
diff --git a/util/precompile_run_kinetic-electrons.jl b/util/precompile_run_kinetic-electrons.jl
index 158375036..212d9f9bf 100644
--- a/util/precompile_run_kinetic-electrons.jl
+++ b/util/precompile_run_kinetic-electrons.jl
@@ -14,7 +14,7 @@ input = Dict("run_name" => "precompilation",
              "evolve_moments_density" => true,
              "evolve_moments_parallel_flow" => true,
              "evolve_moments_parallel_pressure" => true,
-             "electron_physics" => "kinetic_electrons",
+             "composition" => OptionsDict("electron_physics" => "kinetic_electrons"),
              "r_ngrid" => 1,
              "r_nelement" => 1,
              "r_bc" => "periodic",