diff --git a/libs/common/src/platform/models/domain/domain-base.ts b/libs/common/src/platform/models/domain/domain-base.ts
index f2eb162de7c..3907a344de0 100644
--- a/libs/common/src/platform/models/domain/domain-base.ts
+++ b/libs/common/src/platform/models/domain/domain-base.ts
@@ -75,7 +75,7 @@ export default class Domain {
     domain: DomainEncryptableKeys<D>,
     viewModel: ViewEncryptableKeys<V>,
     props: EncryptableKeys<D, V>[],
-    key: SymmetricCryptoKey | null = null,
+    key: SymmetricCryptoKey,
     objectContext: string = "No Domain Context",
   ): Promise<V> {
     const encryptService = Utils.getContainerService().getEncryptService();