diff --git a/src/cmd/ksh93/tests/locale.sh b/src/cmd/ksh93/tests/locale.sh
index 4cc2d9e4e..7d8d2e8b0 100755
--- a/src/cmd/ksh93/tests/locale.sh
+++ b/src/cmd/ksh93/tests/locale.sh
@@ -303,7 +303,8 @@ x=$(LC_ALL=debug $SHELL -c 'typeset -R10 x="a<2b|>c";print -r -- "${x}"')
 x=$(LC_ALL=debug $SHELL -c 'typeset -L10 x="a<2b|>c";print -r -- "${x}"')
 [[ $x == 'a<2b|>c   ' ]] || err_exit 'typeset -L10 should end in three spaces'
 
-if      $SHELL -c "export LC_ALL=en_US.UTF-8; c=$'\342\202\254'; [[ \${#c} == 1 ]]" 2>/dev/null
+if	false &&  # Disable this test because it really test the OS-provided en_US.UTF-8 locale data, which may be broken.
+	$SHELL -c "export LC_ALL=en_US.UTF-8; c=$'\342\202\254'; [[ \${#c} == 1 ]]" 2>/dev/null
 then	LC_ALL=en_US.UTF-8
 	unset i p1 p2 x
 	for i in 9 b c d 20 2000 2001 2002 2003 2004 2005 2006 2008 2009 200a 2028 2029 3000 # 1680 1803 2007 202f 205f