diff --git a/specification/client_server_api.rst b/specification/client_server_api.rst
index 9b16abc3..39a2fd3d 100644
--- a/specification/client_server_api.rst
+++ b/specification/client_server_api.rst
@@ -1314,7 +1314,7 @@ to keep moving forwards.
 Filtering
 ---------
 
-Filters can be created on the server and can be passed as as a parameter to APIs
+Filters can be created on the server and can be passed as a parameter to APIs
 which return events. These filters alter the data returned from those APIs.
 Not all APIs accept filters.