diff --git a/docs/api/containers.rst b/docs/api/containers.rst
index 9433d480..8a2a040d 100644
--- a/docs/api/containers.rst
+++ b/docs/api/containers.rst
@@ -1,5 +1,5 @@
 ``dependency_injector.containers``
---------------------------------
+----------------------------------
 
 .. automodule:: dependency_injector.containers
    :members: