diff --git a/defaults/main.yml b/defaults/main.yml
index 4016063..6d20346 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -34,7 +34,7 @@ epas_client_timbrature_loglevel: 'INFO'
 epas_client_timbrature_regex_stamping: '^(?P<operazione>\\\d{2})(?P<lettore>\\\d{2})[!|\\\s](?P<causale>\\\d{4})\\\w(?P<matricolaFirma>[\\\w,\\\s,.]{17})(?P<anno>\\\d\\\d)(?P<mese>\\\d\\\d)(?P<giorno>\\\d\\\d)(?P<ora>\\\d\\\d)(?P<minuti>\\\d\\\d)$'
 epas_client_timbrature_offset_anno_badge: '1980'
 epas_client_timbrature_fix_causale_pausa_pranzo: 'False'
-epas_client_timbrature_mapping_causali_client_server: '{\\'0000\\': None, \\'2345\\': None,\\'0001\\':\\'motiviDiServizio\\'}'
+epas_client_timbrature_mapping_causali_client_server: "" # Default '{\'0000\': None, \'2345\': None,\'0001\':\'motiviDiServizio\'}'
 epas_client_timbrature_causale_pausa_pranzo_min_hour: '12'
 epas_client_timbrature_causale_pausa_pranzo_max_hour: '15'
 epas_client_timbrature_send_all_stampings_everytime: 'True'