diff --git a/tests/illformed/chardet/big5.xml b/tests/illformed/chardet/big5.xml
index 7cef7a64e..f1b8b72d8 100644
--- a/tests/illformed/chardet/big5.xml
+++ b/tests/illformed/chardet/big5.xml
@@ -1,8 +1,8 @@
 <!--
 SkipUnless:   __import__('chardet')
 Description:  Big5 with no encoding information
-Expect:       bozo and encoding == 'Big5'
+Expect:       bozo and encoding in ('Big5', 'BIG5')
 -->
 <feed xmlns="http://www.w3.org/2005/Atom">
 <title>�ڧƱ�??�ܮe��?��½?������A�}���U�_��??��C �P?�z??����C</title>
-</feed>
\ No newline at end of file
+</feed>
diff --git a/tests/illformed/chardet/euckr.xml b/tests/illformed/chardet/euckr.xml
index 767f3a59e..634dd8fd3 100644
--- a/tests/illformed/chardet/euckr.xml
+++ b/tests/illformed/chardet/euckr.xml
@@ -1,7 +1,7 @@
 <!--
 SkipUnless:   __import__('chardet')
 Description:  EUC-KR with no encoding information
-Expect:       bozo and encoding == 'EUC-KR'
+Expect:       bozo and encoding in ('EUC-KR', 'UHC')
 -->
 <rss>
 <channel>
@@ -10,4 +10,4 @@ Expect:       bozo and encoding == 'EUC-KR'
 <description>TypeKey �ý����� UTF-8�� ���ư��µ�, �ű⼭ �ѱ۷� �� �г����� ���� ��쿡, EUC-KR�� �� ������Ÿ�� ���Ͽ��� �����̷�Ʈ�Ǿ� ���۵Ǿ���� �г����� UTF�� �翬�� ������ ��Ÿ����. ���� ���� ��� ����ϴ� �ʸ� ������ �г����� �ѱ۷� ����ϴ� ���� �е鵵 Ÿ��Ű������ �г����� �̷� ���������� �����ڸԱ�� ����� ���� �ִ�....</description>
 </item>
 </channel>
-</rss>
\ No newline at end of file
+</rss>
diff --git a/tests/illformed/chardet/gb2312.xml b/tests/illformed/chardet/gb2312.xml
index b28c10148..87a52c75e 100644
--- a/tests/illformed/chardet/gb2312.xml
+++ b/tests/illformed/chardet/gb2312.xml
@@ -1,7 +1,7 @@
 <!--
 SkipUnless:   __import__('chardet')
 Description:  GB2312 with no encoding information
-Expect:       bozo and encoding == 'GB2312'
+Expect:       bozo and encoding in ('GB2312', 'GB18030')
 -->
 <rss>
 <channel>
diff --git a/tests/illformed/chardet/windows1255.xml b/tests/illformed/chardet/windows1255.xml
index 0ab773f50..292c779a5 100644
--- a/tests/illformed/chardet/windows1255.xml
+++ b/tests/illformed/chardet/windows1255.xml
@@ -1,7 +1,7 @@
 <!--
 SkipUnless:   __import__('chardet')
 Description:  windows-1255 with no encoding information
-Expect:       bozo and encoding == 'windows-1255'
+Expect:       bozo and encoding in ('windows-1255', 'WINDOWS-1255')
 -->
 <rss>
 <channel>