diff --git a/debian/rules b/debian/rules
index b105e8c79..1d0b2df21 100755
--- a/debian/rules
+++ b/debian/rules
@@ -104,7 +104,7 @@ debian/tree-stamp:
 	dh_fixperms -p$(tpkg)
 	dh_installdeb -p$(tpkg)
 	dh_gencontrol -p$(tpkg)
-	dh_md5sum -p$(tpkg)
+	dh_md5sums -p$(tpkg)
 	dh_builddeb -p$(tpkg)
 	touch debian/tree-stamp
 #