diff --git a/src/testdir/Make_all.mak b/src/testdir/Make_all.mak
index d365dfc..c4403e6 100644
--- a/src/testdir/Make_all.mak
+++ b/src/testdir/Make_all.mak
@@ -558,6 +558,7 @@
 	test_window_cmd.res \
 	test_window_id.res \
 	test_windows_home.res \
+	test_winfixbuf.res \
 	test_wordcount.res \
 	test_writefile.res \
 	test_xxd.res \