diff --git a/logintoboggan.admin.inc b/logintoboggan.admin.inc
index 0674a4c..ea59b98 100644
--- a/logintoboggan.admin.inc
+++ b/logintoboggan.admin.inc
@@ -130,16 +130,16 @@ function logintoboggan_main_settings() {
     '#tree' => FALSE,
   );
 
-  $site403 = variable_get('site_403', '');
-  if ($site403 == '') {
+  $site_403 = variable_get('site_403', '');
+  if ($site_403 == '') {
     $disabled = $default = '0';
   }
-  elseif ($site403 == 'toboggan/denied') {
+  elseif ($site_403 == 'toboggan/denied') {
     $disabled = '0';
     $default = 'toboggan/denied';
   }
   else {
-    $disabled = $default = $site403;
+    $disabled = $default = $site_403;
   }
   $options = array($disabled => $_disabled, 'toboggan/denied' => $_enabled);