diff --git a/sql/import.sql b/sql/import.sql
index b33c8f5..91428e5 100644
--- a/sql/import.sql
+++ b/sql/import.sql
@@ -155,32 +155,32 @@ SELECT setval('users_id_seq', (SELECT COALESCE(max(id),1) FROM users));
 
 -- Undo 11.
 DELETE FROM scopes USING import.choix_periodes icp WHERE scopes.name::jsonb = icp.acp_scopes1::jsonb;
-SELECT setval('scopes_id_seq', (SELECT max(id) FROM scopes));
+SELECT setval('scopes_id_seq', (SELECT COALESCE(max(id),1) FROM scopes));
 ALTER TABLE import.choix_periodes DROP COLUMN acp_scopes1;
 
 -- Undo 10.
 DELETE FROM chill_main_user_job cmuj USING import.choix_periodes icp WHERE cmuj.label::jsonb = icp.job1::jsonb;
-SELECT setval('chill_main_user_job_id_seq', (SELECT max(id) FROM chill_main_user_job));
+SELECT setval('chill_main_user_job_id_seq', (SELECT COALESCE(max(id),1) FROM chill_main_user_job));
 ALTER TABLE import.choix_periodes DROP COLUMN job1;
 
 -- Undo 9.
 DELETE FROM chill_person_accompanying_period_origin cpapo USING import.choix_periodes icp WHERE cpapo.label::jsonb = icp.origin1::jsonb;
-SELECT setval('chill_person_accompanying_period_origin_id_seq', (SELECT max(id) FROM chill_person_accompanying_period_origin));
+SELECT setval('chill_person_accompanying_period_origin_id_seq', (SELECT COALESCE(max(id),1) FROM chill_person_accompanying_period_origin));
 ALTER TABLE import.choix_periodes DROP COLUMN origin1;
 
 -- Undo 8.
 DELETE FROM chill_person_accompanying_period_closingmotive cpapcm USING import.choix_periodes icp WHERE cpapcm.name::jsonb = icp.closingmotive1::jsonb;
-SELECT setval('chill_person_accompanying_period_closingmotive_id_seq', (SELECT max(id) FROM chill_person_accompanying_period_closingmotive));
+SELECT setval('chill_person_accompanying_period_closingmotive_id_seq', (SELECT COALESCE(max(id),1) FROM chill_person_accompanying_period_closingmotive));
 ALTER TABLE import.choix_periodes DROP COLUMN closingmotive1;
 
 -- Undo 7.
 DELETE FROM chill_person_household_position cphp USING import.choix_personnes icp WHERE cphp.label::jsonb = icp.household_position1::jsonb;
-SELECT setval('chill_person_household_position_id_seq', (SELECT max(id) FROM chill_person_household_position));
+SELECT setval('chill_person_household_position_id_seq', (SELECT COALESCE(max(id),1) FROM chill_person_household_position));
 ALTER TABLE import.choix_personnes DROP COLUMN household_position1;
 
 -- Undo 6.
 DELETE FROM chill_person_household_composition_type cphct USING import.choix_personnes icp WHERE cphct.label::jsonb = icp.household_composition_type1::jsonb AND cphct.id > 6;
-SELECT setval('chill_person_household_composition_type_id_seq', (SELECT max(id) FROM chill_person_household_composition_type));
+SELECT setval('chill_person_household_composition_type_id_seq', (SELECT COALESCE(max(id),1) FROM chill_person_household_composition_type));
 ALTER TABLE import.choix_personnes DROP COLUMN household_composition_type1;
 
 -- Undo 5.
@@ -189,12 +189,12 @@ ALTER TABLE import.choix_personnes DROP COLUMN maritalstatus1;
 
 -- Undo 4.
 DELETE FROM country USING import.choix_personnes icp WHERE country.name::jsonb = icp.country1::jsonb AND country.id > 249; -- 249 existing countries
-SELECT setval('country_id_seq', (SELECT max(id) FROM country));
+SELECT setval('country_id_seq', (SELECT COALESCE(max(id),1) FROM country));
 ALTER TABLE import.choix_personnes DROP COLUMN country1;
 
 -- Undo 3.
 DELETE FROM chill_main_civility cmc USING import.choix_personnes ip WHERE cmc.name::jsonb = ip.civility1::jsonb;
-SELECT setval('chill_main_civility_id_seq', (SELECT max(id) FROM chill_main_civility));
+SELECT setval('chill_main_civility_id_seq', (SELECT COALESCE(max(id),1) FROM chill_main_civility));
 ALTER TABLE import.choix_personnes DROP COLUMN civility1;
 
 -- Undo 2.