diff --git a/15.md b/15.md
index 51b7792e..1c3154a3 100644
--- a/15.md
+++ b/15.md
@@ -108,7 +108,7 @@ Fields that are not self-explanatory:
 ```
 
 Fields that are not self-explanatory:
- - `quantity` can be null in the case of items with unlimited abailability, like digital items, or services
+ - `quantity` can be null in the case of items with unlimited availability, like digital items, or services
  - `specs`:
    - an optional array of key pair values. It allows for the Customer UI to present product specifications in a structure mode. It also allows comparison between products
    - eg: `[["operating_system", "Android 12.0"], ["screen_size", "6.4 inches"], ["connector_type", "USB Type C"]]`