diff --git a/defaults/main.yml b/defaults/main.yml
index e0e739a..f79c6c6 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -31,7 +31,8 @@ epas_client_timbrature_epas_server_port: 443
 epas_client_timbrature_user: 'user'
 #epas_client_timbrature_password: 'use a vault file'
 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)$'
+#epas_client_timbrature_regex_stamping: '^(?P<operazione>\d{2})(?P<lettore>\d{2})[!|\s](?P<causale>\d{4})\w(?P<matricolaFirma>[\w,\s,.]{17})(?P<anno>\d\d)(?P<mese>\d\d)(?P<giorno>\d\d)(?P<ora>\d\d)(?P<minuti>\d\d)$'
+epas_client_timbrature_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''}'