1 files changed, 5 insertions, 5 deletions
diff --git a/activerecord/lib/active_record/railtie.rb b/activerecord/lib/active_record/railtie.rb
index 346ae63a08..9ffc3501c5 100644
--- a/activerecord/lib/active_record/railtie.rb
+++ b/activerecord/lib/active_record/railtie.rb
@@ -43,6 +43,11 @@ module ActiveRecord
       ActiveSupport.on_load(:active_record) { self.logger ||= ::Rails.logger }
     end
 
+    initializer "active_record.identity_map" do |app|
+      config.app_middleware.insert_after "::ActionDispatch::Callbacks",
+        "ActiveRecord::IdentityMap::Middleware" if config.active_record.delete(:identity_map)
+    end
+
     initializer "active_record.set_configs" do |app|
       ActiveSupport.on_load(:active_record) do
         app.config.active_record.each do |k,v|
@@ -78,11 +83,6 @@ module ActiveRecord
       end
     end
 
-    initializer "active_record.identity_map" do |app|
-      config.app_middleware.insert_after "::ActionDispatch::Callbacks",
-        "ActiveRecord::IdentityMap::Middleware" if config.active_record.identity_map
-    end
-
     config.after_initialize do
       ActiveSupport.on_load(:active_record) do
         instantiate_observers