diff --git a/docs/source/onu-state-machine.rst b/docs/source/onu-state-machine.rst
index d55779c..b966300 100644
--- a/docs/source/onu-state-machine.rst
+++ b/docs/source/onu-state-machine.rst
@@ -126,7 +126,7 @@
       - TBD
       -
 
-.. list-table:: 
+.. list-table::
     :widths: 15 15 70
     :header-rows: 1