diff --git a/ChangeLog b/ChangeLog
index 95e8fcd1af..62b40dfd09 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -15,6 +15,7 @@ phpMyAdmin - ChangeLog
 - bug #4615 SQL highlighting in process list breaks on auto refresh
 - bug #4616 Warning in db structure print view page
 - bug       Undefined index navwork, savedsearcheswork, fields
+- bug #4620 Undefined index while adding to the central columns list
 
 4.3.0.0 (not yet released)
 + rfe #1502 Smart sorting for int keys
diff --git a/libraries/central_columns.lib.php b/libraries/central_columns.lib.php
index 8544300509..792f0c383c 100644
--- a/libraries/central_columns.lib.php
+++ b/libraries/central_columns.lib.php
@@ -201,7 +201,7 @@ function PMA_syncUniqueColumns($field_select, $isTable=true, $table=null)
     if (empty($cfgCentralColumns)) {
         return PMA_configErrorMessage();
     }
-    $db = $_POST['db'];
+    $db = $_REQUEST['db'];
     $pmadb = $cfgCentralColumns['db'];
     $central_list_table = $cfgCentralColumns['table'];
     $GLOBALS['dbi']->selectDb($db, $GLOBALS['userlink']);
@@ -235,7 +235,7 @@ function PMA_syncUniqueColumns($field_select, $isTable=true, $table=null)
         }
     } else {
         if ($table == null) {
-            $table = $_POST['table'];
+            $table = $_REQUEST['table'];
         }
         foreach ($field_select as $column) {
             $cols .= "'" . PMA_Util::sqlAddSlashes($column) . "',";
diff --git a/test/libraries/PMA_central_columns_test.php b/test/libraries/PMA_central_columns_test.php
index 0acdc880e6..47c5547f1d 100644
--- a/test/libraries/PMA_central_columns_test.php
+++ b/test/libraries/PMA_central_columns_test.php
@@ -157,8 +157,8 @@ class PMA_Central_Columns_Test extends PHPUnit_Framework_TestCase
     public function testPMASyncUniqueColumns()
     {
         $field_select = array("col1");
-        $_POST['db'] = 'PMA_db';
-        $_POST['table'] = 'PMA_table';
+        $_REQUEST['db'] = 'PMA_db';
+        $_REQUEST['table'] = 'PMA_table';
         $this->assertInstanceOf(
             'PMA_Message', PMA_syncUniqueColumns($field_select, false)
         );
@@ -514,4 +514,4 @@ class PMA_Central_Columns_Test extends PHPUnit_Framework_TestCase
             $result
         );
     }
-}
\ No newline at end of file
+}