diff --git a/js/designer/move.js b/js/designer/move.js
index eb2394c81c..847a3ec6c8 100644
--- a/js/designer/move.js
+++ b/js/designer/move.js
@@ -554,6 +554,18 @@ function Add_Other_db_tables () {
     button_options[PMA_messages.strGo] = function () {
         var db = $('#add_table_from').val();
         var table = $('#add_table').val();
+
+        //Check if table already imported or not.
+        var $table = $('[id="' + encodeURIComponent(db) + '.' + encodeURIComponent(table) + '"]');
+        if ($table.length !== 0) {
+            PMA_ajaxShowMessage(
+                PMA_sprintf(PMA_messages.strTableAlreadyExists, db + '.' + table),
+                undefined,
+                'error'
+            );
+            return;
+        }
+
         $.post('db_designer.php', {
             'ajax_request' : true,
             'dialog' : 'add_table',
diff --git a/js/messages.php b/js/messages.php
index 2bf1822cb9..72bff5f107 100644
--- a/js/messages.php
+++ b/js/messages.php
@@ -751,6 +751,9 @@ $js_messages['strStrong'] = __('Strong');
 $js_messages['strU2FTimeout'] = __('Timed out waiting for security key activation.');
 $js_messages['strU2FError'] = __('Failed security key activation (%s).');
 
+/* Designer */
+$js_messages['strTableAlreadyExists'] = _pgettext('The table already exists in the designer and can not be added once more.', 'Table %s already exists!');
+
 echo "var PMA_messages = new Array();\n";
 foreach ($js_messages as $name => $js_message) {
     Sanitize::printJsValue("PMA_messages['" . $name . "']", $js_message);