diff --git a/tests/run-make/unknown-mod-stdin/Makefile b/tests/run-make/unknown-mod-stdin/Makefile
index 6a73179c51f..c1931765382 100644
--- a/tests/run-make/unknown-mod-stdin/Makefile
+++ b/tests/run-make/unknown-mod-stdin/Makefile
@@ -1,3 +1,5 @@
+# ignore-windows
+
 include ../tools.mk
 
 all: