diff --git a/src/testdir/Make_os2.mak b/src/testdir/Make_os2.mak
index 129736c..3de77d2 100644
--- a/src/testdir/Make_os2.mak
+++ b/src/testdir/Make_os2.mak
@@ -40,6 +40,7 @@
 		test_autoformat_join.out \
 		test_eval.out \
 		test_breakindent.out \
+		test_listlbr.out \
 		test_options.out
 
 .SUFFIXES: .in .out