diff --git a/fuel/modules/fuel/assets/js/fuel/controller/BaseFuelController.js b/fuel/modules/fuel/assets/js/fuel/controller/BaseFuelController.js
index 29ff7e8fa..c84c977da 100755
--- a/fuel/modules/fuel/assets/js/fuel/controller/BaseFuelController.js
+++ b/fuel/modules/fuel/assets/js/fuel/controller/BaseFuelController.js
@@ -444,7 +444,7 @@ fuel.controller.BaseFuelController = jqx.lib.BaseController.extend({
 			
 			$modal.find('iframe#replace_iframe').bind('load', function(){
 				var iframeContext = this.contentDocument;
-				var replacedId = $('#new_fuel_replace_id', iframeContext).val();
+				var replacedId = parseInt($('#new_fuel_replace_id', iframeContext).val());
 				
 				$('#form', iframeContext).submit(function(){
 					if (confirm(fuel.lang('replace_warning'))){
diff --git a/fuel/modules/fuel/config/fuel_constants.php b/fuel/modules/fuel/config/fuel_constants.php
index dd0bba9b4..182645708 100644
--- a/fuel/modules/fuel/config/fuel_constants.php
+++ b/fuel/modules/fuel/config/fuel_constants.php
@@ -1,6 +1,6 @@
 <?php 
 // INSTALL_ROOT is defined in the index.php bootstrap file
-define('FUEL_VERSION', '1.4.8');
+define('FUEL_VERSION', '1.4.9');
 if (!defined('MODULES_FOLDER'))
 {
 	define('MODULES_FOLDER', '../../fuel/modules');
diff --git a/fuel/modules/fuel/controllers/Module.php b/fuel/modules/fuel/controllers/Module.php
index 01dd274c7..c1c527342 100644
--- a/fuel/modules/fuel/controllers/Module.php
+++ b/fuel/modules/fuel/controllers/Module.php
@@ -1803,7 +1803,7 @@ function replace($id = NULL)
 		{
 			if ( ! empty($_POST['fuel_replace_id']))
 			{
-				$replace_id = $this->input->post('fuel_replace_id');
+				$replace_id = (int) $this->input->post('fuel_replace_id', true);
 				//$delete = is_true_val($this->input->post('fuel_delete_replacement'));
 				$delete = TRUE;
 				if (!$this->model->replace($replace_id, $id, $delete))
@@ -1833,7 +1833,7 @@ function replace($id = NULL)
 
 		if ($success)
 		{
-			$fields['new_fuel_replace_id'] = array('type' => 'hidden', 'value' => $replace_id);
+			$fields['new_fuel_replace_id'] = array('type' => 'hidden', 'value' => (int) $replace_id);
 		}
 
 		//$this->form_builder->use_form_tag = FALSE;