diff --git a/configure.in b/configure.in
index 758cc26ae..48ace5ed8 100644
--- a/configure.in
+++ b/configure.in
@@ -347,7 +347,7 @@ if test "$ac_cv_header_netinfo_ni_h" = yes -a "$enable_netinfo" = yes; then
 fi
 
 AC_ARG_ENABLE(kcm,
-	AC_HELP_STRING([--enable-kcm],[enable Kerberos Credentials Manager]))
+	AS_HELP_STRING([--enable-kcm],[enable Kerberos Credentials Manager]))
 
 if test "$ac_cv_header_sys_un_h" = yes -a "$enable_kcm" = yes; then
        AC_DEFINE(HAVE_KCM, 1,