diff --git a/lib/chkconfig.ltx b/lib/chkconfig.ltx
index 1872cba143..fe93ba0f49 100644
--- a/lib/chkconfig.ltx
+++ b/lib/chkconfig.ltx
@@ -258,6 +258,7 @@
 \TestPackage{url}
 \TestPackage{varioref}
 \TestPackage{wrapfig}
+\TestPackage{xargs}
 \TestPackage{xcolor}