diff --git a/lib/arch/CArchNetworkBSD.cpp b/lib/arch/CArchNetworkBSD.cpp
index d27ab3fd..60253b00 100644
--- a/lib/arch/CArchNetworkBSD.cpp
+++ b/lib/arch/CArchNetworkBSD.cpp
@@ -827,7 +827,10 @@ const int*
 CArchNetworkBSD::getUnblockPipe()
 {
 	CArchMultithreadPosix* mt = CArchMultithreadPosix::getInstance();
-	return getUnblockPipeForThread(mt->newCurrentThread());
+	CArchThread thread        = mt->newCurrentThread();
+	const int* p              = getUnblockPipeForThread(thread);
+	ARCH->closeThread(thread);
+	return p;
 }
 
 const int*
diff --git a/lib/arch/CArchNetworkWinsock.cpp b/lib/arch/CArchNetworkWinsock.cpp
index b91ba190..0ed630e0 100644
--- a/lib/arch/CArchNetworkWinsock.cpp
+++ b/lib/arch/CArchNetworkWinsock.cpp
@@ -418,6 +418,7 @@ CArchNetworkWinsock::pollSocket(CPollEntry pe[], int num, double timeout)
 	CArchMultithreadWindows* mt = CArchMultithreadWindows::getInstance();
 	CArchThread thread     = mt->newCurrentThread();
 	WSAEVENT* unblockEvent = (WSAEVENT*)mt->getNetworkDataForThread(thread);
+	ARCH->closeThread(thread);
 	if (unblockEvent == NULL) {
 		unblockEvent  = new WSAEVENT;
 		*unblockEvent = WSACreateEvent_winsock();