diff --git a/packages/models/src/Domain/Abstract/TransferPayload/Interfaces/TypeCheck.spec.ts b/packages/models/src/Domain/Abstract/TransferPayload/Interfaces/TypeCheck.spec.ts
new file mode 100644
index 000000000..5299bf1c4
--- /dev/null
+++ b/packages/models/src/Domain/Abstract/TransferPayload/Interfaces/TypeCheck.spec.ts
@@ -0,0 +1,52 @@
+import { ContentType } from '@standardnotes/common'
+import { PayloadTimestampDefaults } from '../../Payload'
+import { isCorruptTransferPayload } from './TypeCheck'
+
+describe('type check', () => {
+  describe('isCorruptTransferPayload', () => {
+    it('should return false if is valid', () => {
+      expect(
+        isCorruptTransferPayload({
+          uuid: '123',
+          content_type: ContentType.Note,
+          content: '123',
+          ...PayloadTimestampDefaults(),
+        }),
+      ).toBe(false)
+    })
+
+    it('should return true if uuid is missing', () => {
+      expect(
+        isCorruptTransferPayload({
+          uuid: undefined as never,
+          content_type: ContentType.Note,
+          content: '123',
+          ...PayloadTimestampDefaults(),
+        }),
+      ).toBe(true)
+    })
+
+    it('should return true if is deleted but has content', () => {
+      expect(
+        isCorruptTransferPayload({
+          uuid: '123',
+          content_type: ContentType.Note,
+          content: '123',
+          deleted: true,
+          ...PayloadTimestampDefaults(),
+        }),
+      ).toBe(true)
+    })
+
+    it('should return true if content type is unknown', () => {
+      expect(
+        isCorruptTransferPayload({
+          uuid: '123',
+          content_type: ContentType.Unknown,
+          content: '123',
+          ...PayloadTimestampDefaults(),
+        }),
+      ).toBe(true)
+    })
+  })
+})
diff --git a/packages/models/src/Domain/Abstract/TransferPayload/Interfaces/TypeCheck.ts b/packages/models/src/Domain/Abstract/TransferPayload/Interfaces/TypeCheck.ts
index 2c53b8789..17f8c4485 100644
--- a/packages/models/src/Domain/Abstract/TransferPayload/Interfaces/TypeCheck.ts
+++ b/packages/models/src/Domain/Abstract/TransferPayload/Interfaces/TypeCheck.ts
@@ -1,3 +1,4 @@
+import { ContentType } from '@standardnotes/common'
 import { isObject, isString } from '@standardnotes/utils'
 import { DecryptedTransferPayload } from './DecryptedTransferPayload'
 import { DeletedTransferPayload } from './DeletedTransferPayload'
@@ -24,5 +25,6 @@ export function isDeletedTransferPayload(payload: TransferPayload): payload is D
 
 export function isCorruptTransferPayload(payload: TransferPayload): boolean {
   const invalidDeletedState = payload.deleted === true && payload.content != undefined
-  return payload.uuid == undefined || invalidDeletedState
+
+  return payload.uuid == undefined || invalidDeletedState || payload.content_type === ContentType.Unknown
 }