diff --git a/test/corpus/comments.txt b/test/corpus/comments.txt
index e992ca0..e7375fe 100644
--- a/test/corpus/comments.txt
+++ b/test/corpus/comments.txt
@@ -39,6 +39,18 @@ Comment with slashes
 
 --------------------------------------------------------------------------------
 
+(source_file
+  (comment))
+
+
+================================================================================
+Comment with asterisks
+================================================================================
+
+/*****/
+
+--------------------------------------------------------------------------------
+
 (source_file
   (comment))