diff --git a/ultimate_ga.php b/ultimate_ga.php
index 8253c17..06a47f1 100644
--- a/ultimate_ga.php
+++ b/ultimate_ga.php
@@ -521,7 +521,7 @@ function uga_options() {
 function uga_track_user() {
   global $user_level;
   uga_debug('Start uga_track_user');
-  if (!user_level) {
+  if (!$user_level) {
     // user nog logged on -> track
     uga_debug('User not logged on');
     $result = true;
@@ -974,4 +974,4 @@ function uga_shutdown() {
 uga_debug('Adding shutdown action hook for debugging and notice if wp_footer is hooked');
 add_action('shutdown', 'uga_shutdown');
 
-?>
\ No newline at end of file
+?>