diff --git a/programmable/modules/readme.md b/programmable/modules/readme.md
index 5cff3561..fa6943e5 100644
--- a/programmable/modules/readme.md
+++ b/programmable/modules/readme.md
@@ -29,7 +29,7 @@ modules = append(modules, {
 
 ## ipio or openwrt
 
-If you are using opio or openwrt, you can combine multiple modules into a complete script in the following way. For example:
+If you are using ipio or openwrt, you can combine multiple modules into a complete script in the following way. For example:
 
 ```
 cat _header.tengo > my.tengo