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-rw-r--r--guides/source/association_basics.md4
1 files changed, 2 insertions, 2 deletions
diff --git a/guides/source/association_basics.md b/guides/source/association_basics.md
index 62e9270539..27387ac3ac 100644
--- a/guides/source/association_basics.md
+++ b/guides/source/association_basics.md
@@ -2451,8 +2451,8 @@ Extensions can refer to the internals of the association proxy using these three
* `proxy_association.reflection` returns the reflection object that describes the association.
* `proxy_association.target` returns the associated object for `belongs_to` or `has_one`, or the collection of associated objects for `has_many` or `has_and_belongs_to_many`.
-Single Table Inheritance
-------------------------
+Single Table Inheritance (STI)
+------------------------------
Sometimes, you may want to share fields and behavior between different models.
Let's say we have Car, Motorcycle, and Bicycle models. We will want to share