diff --git a/core/server/api/canary/utils/validators/input/schemas/posts.json b/core/server/api/canary/utils/validators/input/schemas/posts.json
index 5e89d37ade..36bef7076c 100644
--- a/core/server/api/canary/utils/validators/input/schemas/posts.json
+++ b/core/server/api/canary/utils/validators/input/schemas/posts.json
@@ -37,6 +37,9 @@
                     "type": "string",
                     "enum": ["published", "draft", "scheduled"]
                 },
+                "send_email_when_published": {
+                    "type": "boolean"
+                },
                 "locale": {
                     "type": ["string", "null"],
                     "maxLength": 6