diff --git a/js/messages.php b/js/messages.php
index 698e98891e..8c4f2fbb70 100644
--- a/js/messages.php
+++ b/js/messages.php
@@ -41,7 +41,7 @@ $js_messages['strFormEmpty'] = __('Missing value in the form!');
 $js_messages['strNotNumber'] = __('This is not a number!');
 $js_messages['strAddIndex'] = __('Add Index');
 $js_messages['strEditIndex'] = __('Edit Index');
-$js_messages['strAddToIndex'] = __('Add %d column(s) to index');
+$js_messages['strAddToIndex'] = __('Add %s column(s) to index');
 
 /* Charts */
 /* l10n: Default description for the y-Axis of Charts */
diff --git a/tbl_indexes.php b/tbl_indexes.php
index 12f4b9c0e9..c110e71863 100644
--- a/tbl_indexes.php
+++ b/tbl_indexes.php
@@ -326,7 +326,7 @@ if ($GLOBALS['is_ajax_request'] != true || ! empty($_REQUEST['ajax_page_request'
     <?php
     echo __('Or') . ' ';
     printf(
-        __('Add to index &nbsp;%s&nbsp;column(s)') . "\n",
+        __('Add %s column(s) to index') . "\n",
         '<input type="text" name="added_fields" size="2" value="1" />'
     );
     echo '<input type="submit" name="add_fields" value="' . __('Go') . '" />' . "\n";
@@ -334,7 +334,7 @@ if ($GLOBALS['is_ajax_request'] != true || ! empty($_REQUEST['ajax_page_request'
     </span>
     <?php
 } else {
-    $btn_value = sprintf(__('Add %d column(s) to index'), 1);
+    $btn_value = sprintf(__('Add %s column(s) to index'), 1);
     echo '<div class="slider"></div>';
     echo '<div class="add_fields">';
     echo '<input type="submit" value="' . $btn_value . '" />';