diff --git a/test/tm-cases/wiki_tables.html b/test/tm-cases/wiki_tables.html
index cd04d795..64bc1b52 100644
--- a/test/tm-cases/wiki_tables.html
+++ b/test/tm-cases/wiki_tables.html
@@ -50,6 +50,19 @@ <h1>With header row</h1>
     </tbody>
 </table>
 
+<h1>With only header row</h1>
+
+<table>
+    <thead>
+        <tr>
+            <th>Name</th>
+            <th>Class</th>
+            <th>Race</th>
+            <th>Level</th>
+        </tr>
+    </thead>
+</table>
+
 <h1>With header row, alternate spacing</h1>
 
 <table>
diff --git a/test/tm-cases/wiki_tables.text b/test/tm-cases/wiki_tables.text
index e60c5c13..1128d4bf 100644
--- a/test/tm-cases/wiki_tables.text
+++ b/test/tm-cases/wiki_tables.text
@@ -9,6 +9,10 @@
 || Vlad || Barbarian || Dragonborn || 12 ||
 || Jimbo || Rogue || Halfling || 13 ||
 
+# With only header row
+
+||~ Name ||~ Class ||~ Race ||~ Level ||
+
 # With header row, alternate spacing
 
 || ~Name || ~Class || ~Race || ~Level ||