diff --git a/doc/source/measurements.rst b/doc/source/measurements.rst
index 6572dcbdd..e60a8cedb 100644
--- a/doc/source/measurements.rst
+++ b/doc/source/measurements.rst
@@ -307,7 +307,7 @@ Firewall as a Service (FWaaS)
 Meter                             Type   Unit        Resource     Origin    Note
 ================================  =====  ========    ===========  ========  ===============================
 network.services.firewall         Gauge  firewall    firewall ID  pollster  Existence of a Firewall service
-network.services.firewall.policy  Gauge  policy      policy ID    pollster  Existance of Firewall Policy
+network.services.firewall.policy  Gauge  policy      policy ID    pollster  Existence of Firewall Policy
 ================================  =====  ========    ===========  ========  ===============================