diff --git a/reference.ospf b/reference.ospf
index bb1ea82..53d23f5 100644
--- a/reference.ospf
+++ b/reference.ospf
@@ -1,7 +1,7 @@
 BIRD 2.0.9 ready.
 
-#Positions generated by graphviz (extracted from
-`./snippets/test_diff.py dot` with `-Tdot` backend)
+# Positions generated by graphviz (extracted from
+# `./snippets/test_diff.py dot` with `-Tdot` backend)
 
 # Also, we now support comments :-)