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>§Ú§Æ±æ??«Ü®e©ö?¨ä½?¦¨¤¤¤å¡A¦}¦³§U¤_§ï??¥ó¡C ·P?±z??¥»¤å¡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 ½Ã½ºÅÛÀÌ UTF-8·Î µ¹¾Æ°¡´Âµ¥, °Å±â¼­ Çѱ۷ΠµÈ ´Ð³×ÀÓÀ» Á¤ÇÒ °æ¿ì¿¡, EUC-KR·Î µÈ ¹«¹öºíŸÀÔ ºí·Ï¿¡¼± ¸®´ÙÀÌ·ºÆ®µÇ¾î Àü¼ÛµÇ¾î¿À´Â ´Ð³×ÀÓÀÌ UTF¶ó ´ç¿¬È÷ ±ú¾îÁ® ³ªÅ¸³­´Ù. ½ÇÁ¦ ºí·Ï µî¿¡¼­ »ç¿ëÇÏ´Â ÇÊ¸í ³»Áö´Â ´Ð³×ÀÓÀº Çѱ۷Π»ç¿ëÇÏ´Â ¸¹Àº ºÐµéµµ ŸÀÔÅ°¿¡¼­ÀÇ ´Ð³×ÀÓÀº ÀÌ·± ¹®Á¦¶§¹®¿¡ ¿ï¸ç°ÜÀÚ¸Ô±â·Î ¿µ¾î·Î Áþ°í ÀÖ´Ù....</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>