diff --git a/documents/associations.md b/documents/associations.md
index bba6234e..df27c90e 100644
--- a/documents/associations.md
+++ b/documents/associations.md
@@ -232,7 +232,7 @@ type CustomizeAccount struct {
 
 To define a self-referencing many2many relationship, you have to change association's foreign key in the join table.
 
-to make it different with source's foreign key, which is generated using struct's name and its priamry key, for example:
+to make it different with source's foreign key, which is generated using struct's name and its primary key, for example:
 
 ```go
 type User struct {