diff --git a/app/provision/resources/functions/device_by.php b/app/provision/resources/functions/device_by.php
index 91a97883b8..cccf2ec10a 100644
--- a/app/provision/resources/functions/device_by.php
+++ b/app/provision/resources/functions/device_by.php
@@ -13,7 +13,7 @@ function device_by_mac($device_address) {
 function device_by_ext($ext, $domain) {
 	$sql = "select t1.* ";
 	$sql .= "from v_devices t1 ";
-	$sql .- "inner join v_device_lines t2 on t1.device_uuid = t2.device_uuid ";
+	$sql .= "inner join v_device_lines t2 on t1.device_uuid = t2.device_uuid ";
 	$sql .= "inner join v_domains t3 on t2.domain_uuid = t3.domain_uuid ";
 	$sql .= "where t2.user_id = :ext ";
 	$sql .= "and t3.domain_name = :domain ";
@@ -26,4 +26,4 @@ function device_by_ext($ext, $domain) {
 	return is_array($row) && @sizeof($row) != 0 ? $row : false;
 }
 
-?>
\ No newline at end of file
+?>