diff --git a/zig-x11/Makefile b/zig-x11/Makefile
index 910dd26840093ad4fee50f07eaf5f654539e5d45..482795e3e4bf40602ac93fd00bef89b33510a80f 100644
--- a/zig-x11/Makefile
+++ b/zig-x11/Makefile
@@ -6,3 +6,6 @@ 	clang window.c -o window -lX11
 
 window-test-zig:
 	zig cc window.c -o window -lX11
+
+clean:
+	-rm window a.out