--- a/src/lte/doc/source/lte-design.rst	Wed Sep 28 16:37:57 2011 +0200
+++ b/src/lte/doc/source/lte-design.rst	Wed Sep 28 17:40:44 2011 +0200
@@ -399,6 +399,8 @@
 Helpers
 +++++++
 
+Note: the role of the MME is taken by the EpcHelper, since we don't have an MME at the moment (the current code supports data plane only).
+
 .. seqdiag:: helpers.seqdiag