diff --git a/dlls/secur32/tests/schannel.c b/dlls/secur32/tests/schannel.c
index 0bb07bf8140..e0d550c50f6 100644
--- a/dlls/secur32/tests/schannel.c
+++ b/dlls/secur32/tests/schannel.c
@@ -694,10 +694,20 @@ static void test_communication(void)
 
     buffers[1].cBuffers = 1;
     buffers[1].pBuffers[0].BufferType = SECBUFFER_TOKEN;
+    buffers[0].pBuffers[0].cbBuffer = 1;
     status = pInitializeSecurityContextA(&cred_handle, &context, (SEC_CHAR *)"localhost",
             ISC_REQ_CONFIDENTIALITY|ISC_REQ_STREAM,
             0, 0, &buffers[1], 0, NULL, &buffers[0], &attrs, NULL);
     ok(status == SEC_E_INVALID_TOKEN, "Expected SEC_E_INVALID_TOKEN, got %08x\n", status);
+todo_wine
+    ok(buffers[0].pBuffers[0].cbBuffer == 0, "Output buffer size was not set to 0.\n");
+
+    status = pInitializeSecurityContextA(&cred_handle, &context, (SEC_CHAR *)"localhost",
+            ISC_REQ_CONFIDENTIALITY|ISC_REQ_STREAM,
+            0, 0, &buffers[1], 0, NULL, &buffers[0], &attrs, NULL);
+todo_wine
+    ok(status == SEC_E_INSUFFICIENT_MEMORY || status == SEC_E_INVALID_TOKEN,
+       "Expected SEC_E_INSUFFICIENT_MEMORY or SEC_E_INVALID_TOKEN, got %08x\n", status);
 
     buffers[0].pBuffers[0].cbBuffer = buf_size;