diff --git a/.coveragerc b/.coveragerc
new file mode 100644
index 0000000..eb6aac8
--- /dev/null
+++ b/.coveragerc
@@ -0,0 +1,9 @@
+[run]
+branch = True
+
+concurrency =
+  greenlet
+
+omit =
+  *tests/*,
+