diff --git a/docs/source/route_layer/sync.rst b/docs/source/route_layer/sync.rst
index e6a754e4c0bc509ba626534d804eaba7ec0728cb..5c10b646973ac05b2b966f3fc4eca22b5a316b0f 100644
--- a/docs/source/route_layer/sync.rst
+++ b/docs/source/route_layer/sync.rst
@@ -251,7 +251,8 @@ synchronized by running `rl.is_synced()`:
 
 If the above returns `True` we are now synchronized!
 
-.. code-block::
+.. code-block:: text
+
                       .=                
                      :%%*               
                     -%%%%#