diff --git a/libiberty/configure.ac b/libiberty/configure.ac
index 8fa08758..bbb5e0fd 100644
--- a/libiberty/configure.ac
+++ b/libiberty/configure.ac
@@ -36,7 +36,6 @@ else
   libiberty_topdir="${srcdir}/.."
 fi
 AC_SUBST(libiberty_topdir)
-AC_CONFIG_AUX_DIR($libiberty_topdir)
 
 dnl Very limited version of automake's enable-maintainer-mode