diff --git a/src/proxy.c b/src/proxy.c
index 9ccd25a..1986a7c 100644
--- a/src/proxy.c
+++ b/src/proxy.c
@@ -828,7 +828,7 @@
 	/* If the target backend requires HTTP processing, we have to allocate
 	 * a struct hdr_idx for it if we did not have one.
 	 */
-	if (unlikely(!s->txn.hdr_idx.v && (be->acl_requires & ACL_USE_L7_ANY))) {
+	if (unlikely(!s->txn.hdr_idx.v && be->http_needed)) {
 		if ((s->txn.hdr_idx.v = pool_alloc2(pool2_hdr_idx)) == NULL)
 			return 0; /* not enough memory */