diff --git a/reactos/dll/win32/syssetup/security.c b/reactos/dll/win32/syssetup/security.c
index 8b8c7d2d860..f4b5773aef9 100644
--- a/reactos/dll/win32/syssetup/security.c
+++ b/reactos/dll/win32/syssetup/security.c
@@ -26,6 +26,9 @@ SetAccountDomain(LPCWSTR DomainName,
     LSA_HANDLE PolicyHandle;
     NTSTATUS Status;
 
+    if (DomainSid != NULL)
+        SamSetDomainSid (DomainSid);
+
     memset(&ObjectAttributes, 0, sizeof(LSA_OBJECT_ATTRIBUTES));
     ObjectAttributes.Length = sizeof(LSA_OBJECT_ATTRIBUTES);