diff --git a/eopayment/payfip_ws.py b/eopayment/payfip_ws.py
index a7754bd..4d2b72b 100644
--- a/eopayment/payfip_ws.py
+++ b/eopayment/payfip_ws.py
@@ -87,9 +87,20 @@ class PayFiP(object):
     '''Encapsulate SOAP web-services of PayFiP'''
 
     def __init__(self, wsdl_url=None, service_url=None, zeep_client_kwargs=None):
-        self.client = zeep.Client(wsdl_url or WSDL_URL, **(zeep_client_kwargs or {}))
-        # distribued WSDL is wrong :/
-        self.client.service._binding_options['address'] = service_url or SERVICE_URL
+        self.wsdl_url = wsdl_url
+        self.service_url = service_url
+        self.zeep_client_kwargs = zeep_client_kwargs
+
+    @property
+    def client(self):
+        if not hasattr(self, '_client'):
+            try:
+                self._client = zeep.Client(self.wsdl_url or WSDL_URL, **(self.zeep_client_kwargs or {}))
+                # distribued WSDL is wrong :/
+                self._client.service._binding_options['address'] = self.service_url or SERVICE_URL
+            except Exception as e:
+                raise PayFiPError('Cound not initialize the SOAP client', e)
+        return self._client
 
     def fault_to_exception(self, fault):
         if fault.message != 'fr.gouv.finances.cp.tpa.webservice.exceptions.FonctionnelleErreur' or fault.detail is None: