diff --git a/activerecord/lib/active_record/reflection.rb b/activerecord/lib/active_record/reflection.rb
index e7f56d09e3..f8913eba06 100644
--- a/activerecord/lib/active_record/reflection.rb
+++ b/activerecord/lib/active_record/reflection.rb
@@ -125,7 +125,7 @@ module ActiveRecord
       end
 
       def clear_reflections_cache #:nodoc:
-        @__reflection = nil
+        @__reflections = nil
       end
     end