diff --git a/railties/lib/tasks/databases.rake b/railties/lib/tasks/databases.rake
index 7d18df1873..00c0fa4072 100644
--- a/railties/lib/tasks/databases.rake
+++ b/railties/lib/tasks/databases.rake
@@ -344,6 +344,7 @@ def drop_database(config)
   when /^sqlite/
     FileUtils.rm(File.join(RAILS_ROOT, config['database']))
   when 'postgresql'
+    ActiveRecord::Base.clear_active_connections!    
     `dropdb "#{config['database']}"`
   end
 end