diff --git a/src/testdir/Make_all.mak b/src/testdir/Make_all.mak
index 364221f..b769499 100644
--- a/src/testdir/Make_all.mak
+++ b/src/testdir/Make_all.mak
@@ -246,6 +246,7 @@
 	test_shortpathname \
 	test_signals \
 	test_signs \
+	test_sleep \
 	test_smartindent \
 	test_sort \
 	test_sound \
@@ -472,6 +473,7 @@
 	test_shortpathname.res \
 	test_signals.res \
 	test_signs.res \
+	test_sleep.res \
 	test_smartindent.res \
 	test_sort.res \
 	test_sound.res \