diff --git a/localedata/ChangeLog b/localedata/ChangeLog
index 7e8dc50b64..efe0b2c6b9 100644
--- a/localedata/ChangeLog
+++ b/localedata/ChangeLog
@@ -1,3 +1,8 @@
+2017-08-03  Mike FABIAN  <mfabian@redhat.com>
+
+	* locales/km_KH (LC_MESSAGES): drop redundant ([eE][sS])? and [oO]?
+	from yesexpr and noexpr
+
 2017-08-03  Mike FABIAN  <mfabian@redhat.com>
 
 	* locales/agr_PE (LC_MESSAGES): drop .* from yesexpr and noexpr
diff --git a/localedata/locales/km_KH b/localedata/locales/km_KH
index 337c7e157e..fd47be0fe0 100644
--- a/localedata/locales/km_KH
+++ b/localedata/locales/km_KH
@@ -1824,8 +1824,8 @@ week 7;19971130;1
 END LC_TIME
 
 LC_MESSAGES
-yesexpr "^[+1yY]([eE][sS])?"
-noexpr  "^[-0nN][oO]?"
+yesexpr "^[+1yY]"
+noexpr  "^[-0nN]"
 yesstr  "<U1794><U17B6><U1791><U002F><U1785><U17B6><U179F><U200B><U17D6><U0020><U0079>"
 nostr   "<U1791><U17C1><U200B><U17D6><U0020><U006E>"
 END LC_MESSAGES