diff --git a/src/epub/text/chapter-11.xhtml b/src/epub/text/chapter-11.xhtml
index 6451020..4b1e1c3 100644
--- a/src/epub/text/chapter-11.xhtml
+++ b/src/epub/text/chapter-11.xhtml
@@ -45,7 +45,7 @@
 				<table>
 					<thead>
 						<tr>
-							<th/>
+							<td/>
 							<th>Latitude</th>
 							<th>Summer<br/>
 							<abbr>Temp.</abbr></th>