diff --git a/src/acl.c b/src/acl.c
index e51dafc9d..e2e72ceb6 100644
--- a/src/acl.c
+++ b/src/acl.c
@@ -1422,6 +1422,7 @@ struct acl_expr *parse_acl_expr(const char **args, char **err)
 			 */
 			expr->args = calloc(2, sizeof(*expr->args));
 			expr->args[0].type = type;
+			expr->args[0].unresolved = 1;
 			expr->args[0].data.str.str = strdup("");
 			expr->args[0].data.str.len = 1;
 			expr->args[0].data.str.len = 0;