diff --git a/meshcentral-config-schema.json b/meshcentral-config-schema.json
index bffa936f..0764f823 100644
--- a/meshcentral-config-schema.json
+++ b/meshcentral-config-schema.json
@@ -61,7 +61,7 @@
         "certificatePrivateKeyPassword": { "type": "array", "default": null, "description": "List of passwords used to decrypt PKCK#8 .key files that are in the meshcentral-data folder." },
         "sessionTime": { "type": "integer", "default": 60, "description": "Duration of a session cookie in minutes. Changing this affects how often the session needs to be automatically refreshed." },
         "sessionKey": { "type": "string", "default": null, "description": "Password used to encrypt the MeshCentral web session cookies. If null, a random one is generated each time the server starts." },
-        "sessionSameSite": { "type": "string" },
+        "sessionSameSite": { "type": "string", "default": "strict", "enum": ["strict", "lax", "none"] },
         "dbEncryptKey": { "type": "string" },
         "dbRecordsEncryptKey": { "type": "string", "default": null },
         "dbRecordsDecryptKey": { "type": "string", "default": null },