diff --git a/ADDITIONS/squirrelmail-plugin/functions.inc.php b/ADDITIONS/squirrelmail-plugin/functions.inc.php
index 9a78b532..5db9d0cc 100644
--- a/ADDITIONS/squirrelmail-plugin/functions.inc.php
+++ b/ADDITIONS/squirrelmail-plugin/functions.inc.php
@@ -92,7 +92,7 @@ $optmode = 'display';
 // Call: check_email (string email)
 //
 function check_email ($email) {
-    $return = filter_var('validate_email', $emai);
+    $return = filter_var('validate_email', $email);
     if($return === false) {
         return false;
     }