diff --git a/app/extensions/extension_edit.php b/app/extensions/extension_edit.php
index 08de80e95a..fac674859d 100644
--- a/app/extensions/extension_edit.php
+++ b/app/extensions/extension_edit.php
@@ -197,8 +197,8 @@
 					}
 					else {
 						$device_address = strtolower($device["device_address"]);
-						$device_address = preg_replace('#[^a-fA-F0-9./]#', '', $device_address);
 					}
+					$device_address = preg_replace('#[^a-fA-F0-9./]#', '', $device_address);
 					$line_numbers[$d] = $device["line_number"];
 					$device_addresses[$d] = $device_address;
 					$device_templates[$d] = $device["device_template"];