diff --git a/docs/services.rst b/docs/services.rst
index bcf89740..85b08e6d 100644
--- a/docs/services.rst
+++ b/docs/services.rst
@@ -83,11 +83,15 @@ Reference
 .. autoclass:: mitogen.service.Service
     :members:
 
-.. autoclass:: mitogen.service.FileService
-    :members:
-.. autoclass:: mitogen.service.PushFileService
-    :members:
-
 .. autoclass:: mitogen.service.Pool
     :members:
 
+
+Built-in Services
+-----------------
+
+.. autoclass:: mitogen.service.FileService
+    :members:
+
+.. autoclass:: mitogen.service.PushFileService
+    :members: