diff --git a/ChangeLog b/ChangeLog
index a1ac94e14..a8e463e01 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -7,6 +7,8 @@ $HeadURL$
 
 2006-10-17 Michal Čihař  <michal@cihar.com>
     * Documentation.html: Fix HTML errors.
+    * libraries/sqlparser.data.php, libraries/sqlparser.lib.php: Add support
+      for ON DUPLICATE KEY (bug #1576226).
 
 2006-10-16 Michal Čihař  <michal@cihar.com>
     * left.php, navigation.php, scripts/setup.php, js/querywindow.js,
diff --git a/libraries/sqlparser.data.php b/libraries/sqlparser.data.php
index 8d5b02d3d..838490641 100644
--- a/libraries/sqlparser.data.php
+++ b/libraries/sqlparser.data.php
@@ -363,6 +363,7 @@ $PMA_SQPdata_reserved_word = array (
     'DO',
     'DROP',
     'DUMPFILE',
+    'DUPLICATE',
     'DYNAMIC',
     'ELSE',
     'ENCLOSED',
@@ -578,7 +579,7 @@ $PMA_SQPdata_reserved_word = array (
     'YEAR_MONTH'
 );
 //$PMA_SQPdata_reserved_word_cnt = count($PMA_SQPdata_reserved_word);
-$PMA_SQPdata_reserved_word_cnt = 274;
+$PMA_SQPdata_reserved_word_cnt = 275;
 
 // words forbidden to be used as column or table name,
 // as seen in http://dev.mysql.com/doc/mysql/en/reserved-words.html
diff --git a/libraries/sqlparser.lib.php b/libraries/sqlparser.lib.php
index b6dd158bf..f392e1a04 100644
--- a/libraries/sqlparser.lib.php
+++ b/libraries/sqlparser.lib.php
@@ -1960,6 +1960,7 @@ if ( ! defined( 'PMA_MINIMUM_COMMON' ) ) {
             'ASC',
             'DESC',
             'DISTINCT',
+            'DUPLICATE',
             'HOUR',
             'INTERVAL',
             'IS',