Index: modules/http2/h2_mplx.c
===================================================================
--- modules/http2/h2_mplx.c	(revision 1779507)
+++ modules/http2/h2_mplx.c	(working copy)
@@ -280,7 +280,7 @@
         m->id = c->id;
         APR_RING_ELEM_INIT(m, link);
         m->c = c;
-        apr_pool_create_ex(&m->pool, parent, NULL, allocator);
+        apr_pool_create_ex(&m->pool, NULL, NULL, allocator);
         if (!m->pool) {
             return NULL;
         }