diff --git a/config.ini b/config.ini
index a12369a..0282dda 100644
--- a/config.ini
+++ b/config.ini
@@ -52,3 +52,5 @@ public_sftp_port = 2022
 ; Will be used in configuration files
 https_port = 42443
 internal_onion_http_port = 9080
+
+user_quota = 20971520
diff --git a/sftpgo-auth.php b/sftpgo-auth.php
index f51c441..43eac24 100644
--- a/sftpgo-auth.php
+++ b/sftpgo-auth.php
@@ -5,7 +5,18 @@ require "common/init.php";
 $authData = json_decode(file_get_contents("php://input"), true);
 
 if (checkPassword($authData['username'], $authData['password']) === true) {
-	echo '{"status":1,"username":"' . $authData['username'] . '","permissions":{"/":["*"]}}';
+	echo '
+	{
+		"status": 1,
+		"username": "' . $authData['username'] . '",
+		"quota_size": ' . CONF['ht']['user_quota'] . ',
+		"permissions": {
+			"/": [
+				"*"
+			]
+		}
+	}
+	';
 	http_response_code(200);
 } else {
 	http_response_code(403);