diff --git a/README.md b/README.md
index e6de4cb5dda5dbae8167000a3cb096534bce8d72..cdf63e4f886870a96232df4f4b3e1f22552a5fe3 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 # GitBook Default Theme
 
-This is the default theme for GitBook since version `3.0.0`. It can be used as a template for theming books or cam be extend.
+This is the default theme for GitBook since version `3.0.0`. It can be used as a template for theming books or can be extended.
 
 ![Image](https://raw.github.com/GitbookIO/theme-default/master/preview.png)