diff --git a/pybonjour.py b/pybonjour.py
index 89623e4f28ce88f08e0a0592081e7e32bf11ab3b..9d846c2c93c2bb97cf13e9ac3b7125213eecc711 100644
--- a/pybonjour.py
+++ b/pybonjour.py
@@ -225,6 +225,7 @@ kDNSServiceErr_NoSuchKey            = -65556
 kDNSServiceErr_NATTraversal         = -65557
 kDNSServiceErr_DoubleNAT            = -65558
 kDNSServiceErr_BadTime              = -65559
+kDNSServiceErr_ServiceNotRunning    = -65563
 
 
 #