diff --git a/trytond/netsvc.py b/trytond/netsvc.py
index a002e11029..8978ac2c0b 100644
--- a/trytond/netsvc.py
+++ b/trytond/netsvc.py
@@ -287,6 +287,7 @@ class TinySocketServerThread(threading.Thread):
             try:
                 thread = self.threads[0]
                 thread.stop()
+                time.sleep(0.001) #sleep to let thread running
             except:
                 pass
         try: