diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md
index 003dfdc52e..15ae3a3103 100644
--- a/activerecord/CHANGELOG.md
+++ b/activerecord/CHANGELOG.md
@@ -1,3 +1,11 @@
+*   Load STI Models in fixtures
+
+    Data from Fixtures now loads based on the specific class for models with
+    Single Table Inheritance. This affects enums defined in subclasses, previously
+    the value of these fields was not parsed and remained `nil`
+
+    *Andres Howard*
+    
 *   `#authenticate` returns false when the password is blank instead of raising an error.
 
     *Muhammad Muhammad Ibrahim*
diff --git a/activerecord/lib/active_record/fixture_set/table_row.rb b/activerecord/lib/active_record/fixture_set/table_row.rb
index c96c0fed62..6e5c720e63 100644
--- a/activerecord/lib/active_record/fixture_set/table_row.rb
+++ b/activerecord/lib/active_record/fixture_set/table_row.rb
@@ -126,7 +126,7 @@ module ActiveRecord
         end
 
         def resolve_enums
-          model_class.defined_enums.each do |name, values|
+          reflection_class.defined_enums.each do |name, values|
             if @row.include?(name)
               @row[name] = values.fetch(@row[name], @row[name])
             end
diff --git a/activerecord/test/cases/fixtures_test.rb b/activerecord/test/cases/fixtures_test.rb
index a3e089a6ee..67b37c81d9 100644
--- a/activerecord/test/cases/fixtures_test.rb
+++ b/activerecord/test/cases/fixtures_test.rb
@@ -1331,6 +1331,12 @@ class FoxyFixturesTest < ActiveRecord::TestCase
     assert_equal pirates(:blackbeard), dead_parrots(:deadbird).killer
   end
 
+  def test_resolves_enums_in_sti_subclasses
+    assert_predicate parrots(:george), :australian?
+    assert_predicate parrots(:louis), :african?
+    assert_predicate parrots(:frederick), :african?
+  end
+
   def test_namespaced_models
     assert_includes admin_accounts(:signals37).users, admin_users(:david)
     assert_equal 2, admin_accounts(:signals37).users.size
diff --git a/activerecord/test/fixtures/parrots.yml b/activerecord/test/fixtures/parrots.yml
index 4f0a090e03..bf4296a03e 100644
--- a/activerecord/test/fixtures/parrots.yml
+++ b/activerecord/test/fixtures/parrots.yml
@@ -8,15 +8,18 @@ george:
   name: "Curious George"
   treasures: diamond, sapphire
   parrot_sti_class: LiveParrot
+  breed: australian
 
 louis:
   name: "King Louis"
   treasures: [diamond, sapphire]
   parrot_sti_class: LiveParrot
+  breed: african
 
 frederick:
   name: $LABEL
   parrot_sti_class: LiveParrot
+  breed: african
 
 polly:
   id: 4
@@ -28,6 +31,7 @@ polly:
 DEFAULTS: &DEFAULTS
   treasures: sapphire, ruby
   parrot_sti_class: LiveParrot
+  breed: australian
 
 davey:
   *DEFAULTS
diff --git a/activerecord/test/models/parrot.rb b/activerecord/test/models/parrot.rb
index addeb3eea8..888b66323d 100644
--- a/activerecord/test/models/parrot.rb
+++ b/activerecord/test/models/parrot.rb
@@ -29,6 +29,7 @@ class Parrot < ActiveRecord::Base
 end
 
 class LiveParrot < Parrot
+  enum breed: { african: 0, australian: 1 }
 end
 
 class DeadParrot < Parrot
diff --git a/activerecord/test/schema/schema.rb b/activerecord/test/schema/schema.rb
index 056d59dcac..c564ea5d82 100644
--- a/activerecord/test/schema/schema.rb
+++ b/activerecord/test/schema/schema.rb
@@ -734,6 +734,7 @@ ActiveRecord::Schema.define do
   disable_referential_integrity do
     create_table :parrots, force: :cascade do |t|
       t.string :name
+      t.integer :breed, default: 0
       t.string :color
       t.string :parrot_sti_class
       t.integer :killer_id