diff --git a/bonjour.cpp b/bonjour.cpp
index 1db7b7b..b046fbd 100644
--- a/bonjour.cpp
+++ b/bonjour.cpp
@@ -228,7 +228,8 @@ void QZeroConfPrivate::cleanUp(DNSServiceRef toClean)
 			delete resolverSocket;
 			resolverSocket = NULL;
 		}
-		work.dequeue();
+		if(!work.isEmpty())
+			work.dequeue();
 		if (work.size())
 			resolve();
 	}