diff --git a/dlls/rpcrt4/tests/ndr_marshall.c b/dlls/rpcrt4/tests/ndr_marshall.c
index f64c7668a91..06b7b5198f6 100644
--- a/dlls/rpcrt4/tests/ndr_marshall.c
+++ b/dlls/rpcrt4/tests/ndr_marshall.c
@@ -247,16 +247,21 @@ todo_wine {
         StubMsg.IsClient = 0;
         ptr = NdrPointerUnmarshall( &StubMsg, &mem, formattypes, 0 );
         ok(ptr == NULL, "%s: ret %p\n", msgpfx, ptr);
+        if (formattypes[2] == 0xd /* FC_ENUM16 */)
+            ok(mem != StubMsg.BufferStart + wiredatalen - srcsize, "%s: mem points to buffer %p %p\n", msgpfx, mem, StubMsg.BufferStart);
+        else
 todo_wine {
-        ok(mem == StubMsg.BufferStart + wiredatalen - srcsize, "%s: mem doesn't point to buffer %p %p\n", msgpfx, mem, StubMsg.BufferStart);
+            ok(mem == StubMsg.BufferStart + wiredatalen - srcsize, "%s: mem doesn't point to buffer %p %p\n", msgpfx, mem, StubMsg.BufferStart);
  }
         ok(!cmp(mem, memsrc, size), "%s: incorrecly unmarshaled\n", msgpfx);
         ok(StubMsg.Buffer - StubMsg.BufferStart == wiredatalen, "%s: Buffer %p Start %p len %d\n", msgpfx, StubMsg.Buffer, StubMsg.BufferStart, wiredatalen);
         ok(StubMsg.MemorySize == 0, "%s: memorysize %d\n", msgpfx, StubMsg.MemorySize);
+        if (formattypes[2] != 0xd /* FC_ENUM16 */) {
 todo_wine {
-        ok(my_alloc_called == num_additional_allocs, "%s: my_alloc got called %d times\n", msgpfx, my_alloc_called); 
-        my_alloc_called = 0;
+            ok(my_alloc_called == num_additional_allocs, "%s: my_alloc got called %d times\n", msgpfx, my_alloc_called);
+            my_alloc_called = 0;
  }
+        }
     }
     HeapFree(GetProcessHeap(), 0, mem_orig);
     HeapFree(GetProcessHeap(), 0, StubMsg.BufferStart);