diff --git a/src/testdir/Make_os2.mak b/src/testdir/Make_os2.mak
index 6ff7a6b..cac8f9c 100644
--- a/src/testdir/Make_os2.mak
+++ b/src/testdir/Make_os2.mak
@@ -43,6 +43,7 @@
 		test_autoformat_join.out \
 		test_breakindent.out \
 		test_changelist.out \
+		test_charsearch.out \
 		test_close_count.out \
 		test_command_count.out \
 		test_erasebackword.out \