diff --git a/app/extensions/extension_edit.php b/app/extensions/extension_edit.php
index 92414a6eed..3407fdeedc 100644
--- a/app/extensions/extension_edit.php
+++ b/app/extensions/extension_edit.php
@@ -876,7 +876,7 @@ if (count($_POST) > 0 && strlen($_POST["persistformvar"]) == 0) {
 //set the defaults
 	if (strlen($limit_max) == 0) { $limit_max = '5'; }
 	if (strlen($call_timeout) == 0) { $call_timeout = '30'; }
-	if (strlen($call_screen_enabled == 0)) { $call_screen_enabled = 'false'; }
+	if (strlen($call_screen_enabled) == 0) { $call_screen_enabled = 'false'; }
 
 //begin the page content
 	require_once "resources/header.php";
@@ -1956,4 +1956,4 @@ if (count($_POST) > 0 && strlen($_POST["persistformvar"]) == 0) {
 //include the footer
 	require_once "resources/footer.php";
 
-?>
+?>
\ No newline at end of file