diff --git a/.coveragerc b/.coveragerc
index d6999ad35..795273893 100644
--- a/.coveragerc
+++ b/.coveragerc
@@ -2,6 +2,7 @@
 branch = True
 source = designate
 omit = designate/tests/*,designate/hacking/*
+concurrency = greenlet
 
 [report]
 ignore_errors = True