diff --git a/etc/inc/system.inc b/etc/inc/system.inc
index 04718c5a6e..b2d34ff8c6 100644
--- a/etc/inc/system.inc
+++ b/etc/inc/system.inc
@@ -565,7 +565,7 @@ function system_generate_lighty_config($filename,
 
 	if($captive_portal == true)  {
 		$captiveportal = ",\"mod_rewrite\"";
-		$captive_portal_rewrite = "url.rewrite-once = ( \"(.*.gif|.*.png.|.*.jpg)\" => \"$1\", \"(.*)\" => \"/index.php?redirurl=$1\" )";
+		$captive_portal_rewrite = "url.rewrite-once = ( \"(.*.gif|.*.png|.*.jpg)\" => \"$1\", \"(.*)\" => \"/index.php?redirurl=$1\" )";
 	}
 
 	if($port <> "")