diff --git a/book-convention/README.md b/book-convention/README.md
index 87826e9..1571c81 100644
--- a/book-convention/README.md
+++ b/book-convention/README.md
@@ -11,7 +11,7 @@ A set of users and organisations are used in the different examples.
 
 The following two organisations are regularly used as example:
 
-- Setec Astrononomy with UUID `58d38339-7b24-4386-b4b4-4c0f950d210f`
+- Setec Astronomy with UUID `58d38339-7b24-4386-b4b4-4c0f950d210f`
 - Acme Finance with UUID `58d38326-eda8-443a-9fa8-4e12950d210f`
 
 Starting from MISP 2.4.71, the example organisations with the above mentioned UUID are black-listed to avoid