fix typo in 90.md

1 files changed, 1 insertions, 1 deletions

diff --git a/90.md b/90.md
index 6017c98..241eb38 100644
--- a/90.md
+++ b/90.md
@@ -34,7 +34,7 @@ There are two actors in the workflow described in this NIP:
 * Service providers (npubs who fulfill jobs)
 
 ## Job request (`kind:5000-5999`)
-A request to process data, published by a customer. This event signals that an customer is interested in receiving the result of some kind of compute.
+A request to process data, published by a customer. This event signals that a customer is interested in receiving the result of some kind of compute.
 
 ```json
 {