diff --git a/ucoinpy/api/bma/__init__.py b/ucoinpy/api/bma/__init__.py
index 02fac8a93ad16e4197878b6ffb0e6fa34ae04525..768bd447416453f8466cf92982694a10ba39d91b 100644
--- a/ucoinpy/api/bma/__init__.py
+++ b/ucoinpy/api/bma/__init__.py
@@ -109,7 +109,8 @@ class API(object):
         - `path`: the request path
         """
 
-        response = requests.get(self.reverse_url(path), params=kwargs, headers=self.headers)
+        response = requests.get(self.reverse_url(path), params=kwargs,
+                                headers=self.headers, timeout=15)
 
         if response.status_code != 200:
             raise ValueError('status code != 200 => %d (%s)' % (response.status_code, response.text))
@@ -127,7 +128,8 @@ class API(object):
             kwargs['self'] = kwargs.pop('self_')
 
         logging.debug("POST : {0}".format(kwargs))
-        response = requests.post(self.reverse_url(path), data=kwargs, headers=self.headers)
+        response = requests.post(self.reverse_url(path), data=kwargs, headers=self.headers,
+                                 timeout=15)
 
         if response.status_code != 200:
             raise ValueError('status code != 200 => %d (%s)' % (response.status_code, response.text))
diff --git a/ucoinpy/documents/block.py b/ucoinpy/documents/block.py
index 873f404d09bc74de170d779aa1145ac6968863f1..6a023cd6f383908cb087ea57a2abf593e97ea10a 100644
--- a/ucoinpy/documents/block.py
+++ b/ucoinpy/documents/block.py
@@ -73,6 +73,7 @@ BOTTOM_SIGNATURE
     re_actives = re.compile("Actives:\n")
     re_leavers = re.compile("Leavers:\n")
     re_excluded = re.compile("Excluded:\n")
+    re_exclusion = re.compile("([1-9A-Za-z][^OIl]{42,45})\n")
     re_certifications = re.compile("Certifications:\n")
     re_transactions = re.compile("Transactions:\n")
 
@@ -197,7 +198,7 @@ BOTTOM_SIGNATURE
         if Block.re_excluded.match(lines[n]):
             n = n + 1
             while Block.re_certifications.match(lines[n]) is None:
-                membership = Membership.from_inline(version, currency, "OUT", lines[n])
+                membership = Block.re_exclusion.match(lines[n]).group(1)
                 excluded.append(membership)
                 n = n + 1
 
@@ -282,7 +283,7 @@ PreviousIssuer: {1}\n".format(self.prev_hash, self.prev_issuer)
 
         doc += "Excluded:\n"
         for exclude in self.excluded:
-            doc += "{0}\n".format(exclude.inline())
+            doc += "{0}\n".format(exclude)
 
         doc += "Certifications:\n"
         for cert in self.certifications:
diff --git a/ucoinpy/documents/certification.py b/ucoinpy/documents/certification.py
index 79f6d11f04910153d1db8af8bbf7b9c46a6b2e9d..ce5eff0e6a9007b247231c8841e6b2ee8de9a81b 100644
--- a/ucoinpy/documents/certification.py
+++ b/ucoinpy/documents/certification.py
@@ -57,7 +57,7 @@ class Certification(Document):
     re_timestamp = re.compile("META:TS:([0-9]+)-([0-9a-fA-F]{5,40})\n")
 
     def __init__(self, version, currency, pubkey_from, pubkey_to,
-                 blockhash, blocknumber, signature):
+                 blocknumber, blockhash, signature):
         '''
         Constructor
         '''