diff --git a/vlib/v/tests/options/option_ptr_unwrap_test.v b/vlib/v/tests/options/option_ptr_unwrap_test.v
index 4e10a054a0..74ff2829ef 100644
--- a/vlib/v/tests/options/option_ptr_unwrap_test.v
+++ b/vlib/v/tests/options/option_ptr_unwrap_test.v
@@ -1,3 +1,4 @@
+// vtest build: !msvc
 import time
 // 41s.