diff --git a/doc/en/administration_guide/02l.rst b/doc/en/administration_guide/02l.rst
index 10fe217abb0..a698683b515 100644
--- a/doc/en/administration_guide/02l.rst
+++ b/doc/en/administration_guide/02l.rst
@@ -549,7 +549,7 @@ Lua Outputs
 ===========
 
 Lua *Outputs* send metrics information into a script by a key-value system.
-The LUA script should be on your server.
+The Lua script should be on your server.
 
 Path
   The path of the Lua script in your server.