diff --git a/tests/tester.nim b/tests/tester.nim
index 603023b..af544f9 100644
--- a/tests/tester.nim
+++ b/tests/tester.nim
@@ -18,6 +18,9 @@ createDir(installDir)
 test "can compile nimble":
   check execCmdEx("nim c " & path).exitCode == QuitSuccess
 
+test "can compile with --os:windows":
+  check execCmdEx("nim check --os:windows " & path).exitCode == QuitSuccess
+
 template cd*(dir: string, body: untyped) =
   ## Sets the current dir to ``dir``, executes ``body`` and restores the
   ## previous working dir.