diff --git a/documents/SUMMARY.md b/documents/SUMMARY.md
index 67e784c9..ff6166f7 100644
--- a/documents/SUMMARY.md
+++ b/documents/SUMMARY.md
@@ -5,7 +5,7 @@
   * [Database Connection](database.md#connecting-to-a-database)
   * [Migration](database.md#migration)
 * [Models](models.md)
-  * [Model Defination](models.md#model-defination),
+  * [Model Definition](models.md#model-definition),
   * [Conventions & Overriding](models.md#conventions),
   * [Associations](associations.md)
     * [Belongs To](associations.md#belongs-to)
diff --git a/documents/models.md b/documents/models.md
index 240315c3..f1cecb02 100644
--- a/documents/models.md
+++ b/documents/models.md
@@ -2,7 +2,7 @@
 
 <!-- toc -->
 
-## Model Defination
+## Model Definition
 
 ```go
 type User struct {