--- a/bridge.py
+++ b/bridge.py
@@ -84,6 +84,9 @@ class bridge:
 		if error == 'nicknameinuse':
 			self.bot.error('[Error] "'+self.bot.nickname+'" is already used in the IRC chan or reserved on the IRC server of bridge "'+str(self)+'"')
 			raise Exception('[Error] "'+self.bot.nickname+'" is already used in the IRC chan or reserved on the IRC server of bridge "'+str(self)+'"')
+		if error == 'nickcollision':
+			self.bot.error('[Error] "'+self.bot.nickname+'" is already used or reserved on the IRC server of bridge "'+str(self)+'"')
+			raise Exception('[Error] "'+self.bot.nickname+'" is already used or reserved on the IRC server of bridge "'+str(self)+'"')
 		elif error == 'erroneusnickname':
 			self.bot.error('[Error] "'+self.bot.nickname+'" got "erroneusnickname" on bridge "'+str(self)+'"')
 			raise Exception('[Error] "'+self.bot.nickname+'" got "erroneusnickname" on bridge "'+str(self)+'"')
@@ -266,7 +269,7 @@ class bridge:
 			if p.protocol == 'xmpp':
 				i += 1
 				if p.irc_connection != None:
-					p.irc_connection.close('Bridge is switching to limited mode', volontary=True)
+					p.irc_connection.close('Bridge is switching to limited mode')
 					p.irc_connection = None
 		self.irc_connections_limit = i
 		self.bot.error('===> Bridge is switching to limited mode. Limit seems to be '+str(self.irc_connections_limit)+' on "'+self.irc_server+'".')
@@ -289,7 +292,7 @@ class bridge:
 		# Close IRC connection if not used by an other bridge, just leave the room otherwise
 		self.irc_connection.used_by -= 1
 		if self.irc_connection.used_by < 1:
-			self.irc_connection.close('Removing bridge', volontary=True)
+			self.irc_connection.close('Removing bridge')
 		else:
 			self.irc_connection.part('Removing bridge')
 		del self.irc_connection