diff --git a/site/content/docs/v1.12/custom-plugins.md b/site/content/docs/v1.12/custom-plugins.md
index bac500db5..351d8ff30 100644
--- a/site/content/docs/v1.12/custom-plugins.md
+++ b/site/content/docs/v1.12/custom-plugins.md
@@ -37,7 +37,7 @@ When naming your plugin, keep in mind that the full name needs to conform to the
 - have two parts, prefix + name, separated by '/'
 - none of the above parts can be empty
 - the prefix is a valid DNS subdomain name
-- a plugin with the same prefix + name cannot not already exist
+- a plugin with the same prefix + name cannot already exist
 
 ### Some examples: