diff --git a/testes/tabela-2throws.html b/testes/tabela-2throws.html
index bc4f778..7e92bf5 100644
--- a/testes/tabela-2throws.html
+++ b/testes/tabela-2throws.html
@@ -29,7 +29,7 @@ <h2>1. id/headers em todas as th e td</h2>
 				<th scope="colgroup" id="conformidade" colspan="3">Sítios Web em conformidade</th>
 			</tr>
 			<tr>
-				<th id="a">A</th>
+				<th scope="col" id="a">A</th>
 				<th scope="col" id="aa"><abbr title="duplo A">AA</abbr></th>
 				<th scope="col" id="aaa"><abbr title="triplo A">AAA</abbr></th>
 			</tr>