diff --git a/activerecord/lib/active_record/relation.rb b/activerecord/lib/active_record/relation.rb
index cef40be7ce..ad54d84665 100644
--- a/activerecord/lib/active_record/relation.rb
+++ b/activerecord/lib/active_record/relation.rb
@@ -242,6 +242,11 @@ module ActiveRecord
       @records
     end
 
+    # Serializes the relation objects Array.
+    def encode_with(coder)
+      coder.represent_seq(nil, to_a)
+    end
+
     def as_json(options = nil) #:nodoc:
       to_a.as_json(options)
     end
diff --git a/activerecord/lib/active_record/relation/delegation.rb b/activerecord/lib/active_record/relation/delegation.rb
index df3ac43b0a..50f4d5c7ab 100644
--- a/activerecord/lib/active_record/relation/delegation.rb
+++ b/activerecord/lib/active_record/relation/delegation.rb
@@ -119,10 +119,6 @@ module ActiveRecord
         arel.respond_to?(method, include_private)
     end
 
-    def encode_with(coder)
-      coder.represent_seq(nil, to_a)
-    end
-
     protected
 
     def array_delegable?(method)