diff --git a/displays_info_controller.php b/displays_info_controller.php
index 1e3c4d7..186f39a 100755
--- a/displays_info_controller.php
+++ b/displays_info_controller.php
@@ -33,6 +33,9 @@ public function index()
      **/
     public function get_data($serial = '')
     {
+        // Remove non-serial number characters
+        $serial = preg_replace("/[^A-Za-z0-9_\-]]/", '', $serial);
+
         $obj = new View();
 
         if (! $this->authorized()) {