diff --git a/.coveragerc b/.coveragerc
index 686e3eaaadd..305d02f2dbd 100644
--- a/.coveragerc
+++ b/.coveragerc
@@ -1139,6 +1139,7 @@ omit =
     homeassistant/components/smarty/*
     homeassistant/components/sms/__init__.py
     homeassistant/components/sms/const.py
+    homeassistant/components/sms/coordinator.py
     homeassistant/components/sms/gateway.py
     homeassistant/components/sms/notify.py
     homeassistant/components/sms/sensor.py