diff --git a/docs/simulator-api.rst b/docs/simulator-api.rst
index b30b2af06b8582eeb969887f5f795c4a9132a2db..9e710745b967fcfad322f55467c65c188dd7a0d2 100644
--- a/docs/simulator-api.rst
+++ b/docs/simulator-api.rst
@@ -10,7 +10,7 @@ Simulator API
 
 This document describes the API used to manage policy types and manipulate the simulator.
 
-The simulator supports different versions of the A1 interface. Some functions are common for all version, and some are
+The simulator supports different versions of the A1 interface. Some functions are common for all versions, and some are
 specific for a certain version.
 
 Common Functions