diff --git a/app/extensions/extension_edit.php b/app/extensions/extension_edit.php
index 44ca4e1952..0af869bda1 100644
--- a/app/extensions/extension_edit.php
+++ b/app/extensions/extension_edit.php
@@ -1317,7 +1317,7 @@ if (count($_POST) > 0 && strlen($_POST["persistformvar"]) == 0) {
 			$prep_statement = $db->prepare(check_sql($sql));
 			$prep_statement->execute();
 			$result = $prep_statement->fetchAll(PDO::FETCH_NAMED);
-			echo "				<select id=\"device_mac_address\" name=\"device_mac_address\" class='formfld' onchange='changeToInput_device_mac_address(this);this.style.visibility = \"hidden\";'>\n";
+			echo "				<select id=\"device_mac_address\" name=\"device_mac_address\" class='formfld' style='width: 180px;' onchange='changeToInput_device_mac_address(this);this.style.visibility = \"hidden\";'>\n";
 			echo "					<option value=''></option>\n";
 			if (count($result) > 0) {
 				foreach($result as $field) {