diff --git a/system/helpers/url_helper.php b/system/helpers/url_helper.php
index 5576c27..cf6df4e 100644
--- a/system/helpers/url_helper.php
+++ b/system/helpers/url_helper.php
@@ -198,7 +198,7 @@
 
 		if ($attributes === FALSE)
 		{
-			return "<a href='javascript:void(0);' onclick=\"window.open('".$site_url."', '_blank');\">".$title.'</a>';
+			return '<a href="javascript:void(0);" onclick="window.open(\''.$site_url."', '_blank');\">".$title.'</a>';
 		}
 
 		if ( ! is_array($attributes))
@@ -217,7 +217,7 @@
 			$attributes = _parse_attributes($attributes);
 		}
 
-		return "<a href='javascript:void(0);' onclick=\"window.open('".$site_url."', '_blank', '"._parse_attributes($atts, TRUE)."');\"".$attributes.'>'.$title.'</a>';
+		return '<a href="javascript:void(0);" onclick="window.open(\''.$site_url."', '_blank', '"._parse_attributes($atts, TRUE)."');\"".$attributes.'>'.$title.'</a>';
 	}
 }