--- lib/getdef.c
+++ lib/getdef.c
@@ -58,6 +58,7 @@ static struct itemdef def_table[] = {
 	{"CREATE_HOME", NULL},
 	{"DEFAULT_HOME", NULL},
 	{"ENCRYPT_METHOD", NULL},
+	{"ENCRYPT_METHOD_NIS", NULL},
 	{"ENV_PATH", NULL},
 	{"ENV_SUPATH", NULL},
 	{"ERASECHAR", NULL},