diff --git a/abuild b/abuild
index fc089374353e88c794b58d353aa3e29128894ed7..5bc6334dd75494959ffc12871399ef5b6cf270d8 100755
--- a/abuild
+++ b/abuild
@@ -281,6 +281,7 @@ usage() {
 	echo "  cleanpkg   Remove already built binary and source package"
 	echo "  cleancache Remove downloaded files from \$SRCDEST"
 	echo "  srcpkg     Make a source package"
+	echo "  up2date    Compare target and sources dates"
 	echo ""
 	exit 0
 }