diff --git a/src/guiguts/data/html/html_header.txt b/src/guiguts/data/html/html_header.txt
index c2eccd44..f94bdae4 100644
--- a/src/guiguts/data/html/html_header.txt
+++ b/src/guiguts/data/html/html_header.txt
@@ -251,4 +251,3 @@ img.w100 {width: 100%;}
     </style>
 </head>
 <body>
-<main>
diff --git a/src/guiguts/html_convert.py b/src/guiguts/html_convert.py
index d762f15c..97e1dde3 100644
--- a/src/guiguts/html_convert.py
+++ b/src/guiguts/html_convert.py
@@ -1153,7 +1153,7 @@ def insert_header_footer() -> None:
         if user_header:
             maintext().insert(end_of_css(), f"{user_header}\n")
     # Insert footer
-    maintext().insert(tk.END, "\n</main>\n</body>\n</html>\n")
+    maintext().insert(tk.END, "\n</body>\n</html>\n")
     # Restore mark gravity if changed above
     for page_mark in page_mark_list:
         maintext().mark_gravity(page_mark, tk.LEFT)
diff --git a/tests/expected/htmlconvert1.txt b/tests/expected/htmlconvert1.txt
index a0b4ccb4..9e67ff03 100644
--- a/tests/expected/htmlconvert1.txt
+++ b/tests/expected/htmlconvert1.txt
@@ -251,7 +251,6 @@ img.w100 {width: 100%;}
     </style>
 </head>
 <body>
-<main>
 
 
 <!-- Autogenerated TOC. Modify or delete as required. -->
@@ -1682,6 +1681,5 @@ SHEETS</p>
 </blockquote>
 <p>]</p>
 
-</main>
 </body>
 </html>
diff --git a/tests/expected/htmlconvert2.txt b/tests/expected/htmlconvert2.txt
index 11a5d641..8f01cce3 100644
--- a/tests/expected/htmlconvert2.txt
+++ b/tests/expected/htmlconvert2.txt
@@ -251,7 +251,6 @@ img.w100 {width: 100%;}
     </style>
 </head>
 <body>
-<main>
 
 
 <h1>
@@ -5399,6 +5398,5 @@ of this eBook that support hyperlinks, the page
 references in the List of Illustrations lead to the
 corresponding illustrations.</p>
 
-</main>
 </body>
 </html>
