diff --git a/openfisca_survey_manager/scenarios/abstract_scenario.py b/openfisca_survey_manager/scenarios/abstract_scenario.py
index c1e7add8..274e7dc1 100644
--- a/openfisca_survey_manager/scenarios/abstract_scenario.py
+++ b/openfisca_survey_manager/scenarios/abstract_scenario.py
@@ -621,7 +621,7 @@ def init_from_data(self, calibration_kwargs = None, inflation_kwargs = None,
         # Inverting reform and baseline because we are more likely
         # to use baseline input in reform than the other way around
         self.simulations = dict()
-        for simulation_name, tax_benefit_system in self.tax_benefit_systems.items():
+        for simulation_name, _ in self.tax_benefit_systems.items():
             self.new_simulation(simulation_name, debug = debug, data = data, trace = trace, memory_config = memory_config)
             if use_marginal_tax_rate:
                 self.new_simulation(simulation_name, debug = debug, data = data, trace = trace, memory_config = memory_config, marginal_tax_rate_only = True)
diff --git a/openfisca_survey_manager/tests/test_calibration.py b/openfisca_survey_manager/tests/test_calibration.py
index ae419e6c..14191e06 100644
--- a/openfisca_survey_manager/tests/test_calibration.py
+++ b/openfisca_survey_manager/tests/test_calibration.py
@@ -24,7 +24,7 @@ def test_calibration_variable_entity_is_weight_entity():
         parameters = {"method": "raking ratio"},
         )
 
-    for simulation_name, simulation in survey_scenario.simulations.items():
+    for _, simulation in survey_scenario.simulations.items():
         assert all(simulation.calibration.weight != simulation.calibration.initial_weight)
 
     assert_near(survey_scenario.compute_aggregate("rent", period = period), target_rent_aggregate)