diff --git a/docs/usage.rst b/docs/usage.rst
index 21281b6b..f028cb9b 100644
--- a/docs/usage.rst
+++ b/docs/usage.rst
@@ -443,7 +443,7 @@ Web service that computes the requested power of two.
          app['pool'] = await asyncpg.create_pool(database='postgres',
                                                  user='postgres')
          yield
-         app['pool'].close()
+         await app['pool'].close()
 
  
     def init_app():