diff --git a/docs/config/customize.md b/docs/config/customize.md
index 0d12ae6b..9c2eb202 100644
--- a/docs/config/customize.md
+++ b/docs/config/customize.md
@@ -9,7 +9,7 @@ that.
 So basically you'll have your own templates and/or statics directories where
 you will put the templates or statics you want to control (and only those).
 
-Inside those directory, you need to respect the exact relative path of the
+Inside those directories, you need to respect the exact relative path of the
 templates or statics you are adding, relatively to the
 [templates](https://github.com/umap-project/umap/tree/master/umap/templates)
 and