diff --git a/src/sakia/core/net/node.py b/src/sakia/core/net/node.py
index 15ba775fa3e27b77846c08a2ce0f9f0f6de2334e..f1f2d4b59c842460afc5abbad99188ccec5fecf8 100644
--- a/src/sakia/core/net/node.py
+++ b/src/sakia/core/net/node.py
@@ -5,15 +5,13 @@ Created on 21 févr. 2015
 """
 
 from ucoinpy.documents.peer import Peer, Endpoint, BMAEndpoint
-from ucoinpy.documents import Block, BlockId
+from ucoinpy.documents import Block, BlockId, MalformedDocumentError
 from ...tools.exceptions import InvalidNodeCurrency
 from ...tools.decorators import asyncify
 from ucoinpy.api import bma as bma
 from ucoinpy.api.bma import ConnectionHandler
 
-import json
-from aiohttp.errors import ClientError, DisconnectedError, TimeoutError, \
-    WSClientDisconnectedError, WSServerHandshakeError, ClientResponseError
+from aiohttp.errors import WSClientDisconnectedError, WSServerHandshakeError, ClientResponseError
 from aiohttp.errors import ClientError, DisconnectedError
 from asyncio import TimeoutError
 import logging
@@ -588,11 +586,14 @@ class Node(QObject):
 
     def refresh_peer_data(self, peer_data):
         if "raw" in peer_data:
-            str_doc = "{0}{1}\n".format(peer_data['raw'],
-                                        peer_data['signature'])
-            peer_doc = Peer.from_signed_raw(str_doc)
-            pubkey = peer_data['pubkey']
-            self.neighbour_found.emit(peer_doc, pubkey)
+            try:
+                str_doc = "{0}{1}\n".format(peer_data['raw'],
+                                            peer_data['signature'])
+                peer_doc = Peer.from_signed_raw(str_doc)
+                pubkey = peer_data['pubkey']
+                self.neighbour_found.emit(peer_doc, pubkey)
+            except MalformedDocumentError as e:
+                logging.debug(str(e))
         else:
             logging.debug("Incorrect leaf reply")
 
diff --git a/src/sakia/gui/process_cfg_community.py b/src/sakia/gui/process_cfg_community.py
index be0e5355aa6940413be9217b7e06534d34b13819..a29e0d7758e724a4e6cd475864f9b5d2583616e9 100644
--- a/src/sakia/gui/process_cfg_community.py
+++ b/src/sakia/gui/process_cfg_community.py
@@ -8,9 +8,10 @@ import logging
 import asyncio
 import aiohttp
 
-from PyQt5.QtWidgets import QDialog, QMenu, QMessageBox, QApplication
+from ucoinpy.documents import MalformedDocumentError
+from PyQt5.QtWidgets import QDialog, QMenu, QApplication
 from PyQt5.QtGui import QCursor
-from PyQt5.QtCore import pyqtSlot, pyqtSignal, QObject
+from PyQt5.QtCore import pyqtSignal, QObject
 
 from ..gen_resources.community_cfg_uic import Ui_CommunityConfigurationDialog
 from ..models.peering import PeeringTreeModel
@@ -73,7 +74,7 @@ class StepPageInit(Step):
             self.config_dialog.label_error.setText(str(e))
         except aiohttp.errors.ClientError as e:
             self.config_dialog.label_error.setText(str(e))
-        except ValueError as e:
+        except (MalformedDocumentError, ValueError) as e:
             self.config_dialog.label_error.setText(str(e))
 
     @asyncify
@@ -101,7 +102,7 @@ Yours : {0}, the network : {1}""".format(registered[1], registered[2])))
             self.config_dialog.label_error.setText(str(e))
         except aiohttp.errors.ClientError as e:
             self.config_dialog.label_error.setText(str(e))
-        except ValueError as e:
+        except (MalformedDocumentError, ValueError) as e:
             self.config_dialog.label_error.setText(str(e))
 
     @asyncify
@@ -144,7 +145,7 @@ Yours : {0}, the network : {1}""".format(registered[1], registered[2])))
             self.config_dialog.label_error.setText(str(e))
         except aiohttp.errors.ClientError as e:
             self.config_dialog.label_error.setText(str(e))
-        except ValueError as e:
+        except (MalformedDocumentError, ValueError) as e:
             self.config_dialog.label_error.setText(str(e))
 
     def is_valid(self):