diff --git a/src/class_outgoingSynSender.py b/src/class_outgoingSynSender.py
index 738882ef..58db78b8 100644
--- a/src/class_outgoingSynSender.py
+++ b/src/class_outgoingSynSender.py
@@ -80,7 +80,7 @@ class outgoingSynSender(threading.Thread, StoppableThread):
                 shared.alreadyAttemptedConnectionsListLock.release()
             except threading.ThreadError as e:
                 pass
-            self.name = "outgoingSynSender-" + peer.host
+            self.name = "outgoingSynSender-" + peer.host.replace(":", ".") # log parser field separator
             if peer.host.find(':') == -1:
                 address_family = socket.AF_INET
             else:
diff --git a/src/class_receiveDataThread.py b/src/class_receiveDataThread.py
index 59399d7a..fbc55ae0 100644
--- a/src/class_receiveDataThread.py
+++ b/src/class_receiveDataThread.py
@@ -46,7 +46,7 @@ class receiveDataThread(threading.Thread):
         
         self.sock = sock
         self.peer = shared.Peer(HOST, port)
-        self.name = "receiveData-" + self.peer.host
+        self.name = "receiveData-" + self.peer.host.replace(":", ".") # ":" log parser field separator
         self.streamNumber = streamNumber
         self.objectsThatWeHaveYetToGetFromThisPeer = {}
         self.selfInitiatedConnections = selfInitiatedConnections
diff --git a/src/class_sendDataThread.py b/src/class_sendDataThread.py
index f151f55b..9c048d32 100644
--- a/src/class_sendDataThread.py
+++ b/src/class_sendDataThread.py
@@ -36,7 +36,7 @@ class sendDataThread(threading.Thread):
             someObjectsOfWhichThisRemoteNodeIsAlreadyAware):
         self.sock = sock
         self.peer = shared.Peer(HOST, PORT)
-        self.name = "sendData-" + self.peer.host
+        self.name = "sendData-" + self.peer.host.replace(":", ".") # log parser field separator
         self.streamNumber = streamNumber
         self.services = 0
         self.initiatedConnection = False