diff --git a/dlls/ntdll/nt.c b/dlls/ntdll/nt.c
index ed7a9b79f76..47ca85eda61 100644
--- a/dlls/ntdll/nt.c
+++ b/dlls/ntdll/nt.c
@@ -275,6 +275,11 @@ NTSTATUS WINAPI NtQueryInformationToken(
             owner->Owner = sid;
         }
         break;
+    default:
+        {
+            ERR("Unhandled Token Information class!\n");
+            return STATUS_NOT_IMPLEMENTED;
+        }
     }
     return 0;
 }