diff --git a/shared/proxy/DispatcherProxy.py b/shared/proxy/DispatcherProxy.py
index b3fd04f6..c981ed4d 100644
--- a/shared/proxy/DispatcherProxy.py
+++ b/shared/proxy/DispatcherProxy.py
@@ -114,13 +114,15 @@ class FastTransport:
         s.connect(self.address)
         s.send('%s\n' % len(request_body))
         s.send(request_body)
-        try:
-            answerHeader = s.recv(12)
-        except socket.error, exception:
-            if exception[0] == errno.ECONNRESET:
-                # TODO: server got shutdown; webserver should send 503
-                pass
-            raise
+        answerHeader = ''
+        while not answerHeader:
+            try:
+                answerHeader = s.recv(12)
+            except socket.error, exception:
+                if exception[0] == errno.ECONNRESET:
+                    # TODO: server got shutdown; webserver should send 503
+                    pass
+                raise
 
         try:
             length = int(answerHeader)