diff --git a/tests/du/Makefile.am b/tests/du/Makefile.am
index fdb1e4f2b..77d28c881 100644
--- a/tests/du/Makefile.am
+++ b/tests/du/Makefile.am
@@ -2,6 +2,7 @@
 AUTOMAKE_OPTIONS = 1.4 gnits
 
 TESTS = \
+  deref-args \
   slash \
   fd-leak \
   hard-link 8gb basic restore-wd \