diff --git a/tests/du/Makefile.am b/tests/du/Makefile.am
new file mode 100644
index 000000000..873b371e8
--- /dev/null
+++ b/tests/du/Makefile.am
@@ -0,0 +1,7 @@
+## Process this file with automake to produce Makefile.in -*-Makefile-*-.
+AUTOMAKE_OPTIONS = 1.4 gnits
+
+TESTS = two-args
+EXTRA_DIST = $(TESTS)
+TESTS_ENVIRONMENT = \
+  PATH=`pwd`/../../src:$$PATH