diff --git a/src/testdir/Make_os2.mak b/src/testdir/Make_os2.mak
index 7cdfcb1..224f695 100644
--- a/src/testdir/Make_os2.mak
+++ b/src/testdir/Make_os2.mak
@@ -47,6 +47,7 @@
 		test_erasebackword.out \
 		test_eval.out \
 		test_insertcount.out \
+		test_listchars.out \
 		test_listlbr.out \
 		test_listlbr_utf8.out \
 		test_mapping.out \