diff --git a/src/stream.c b/src/stream.c
index c474071..c76d010 100644
--- a/src/stream.c
+++ b/src/stream.c
@@ -447,6 +447,18 @@
 	flt_stream_release(s, 0);
 
 	if (fe) {
+		if (s->req_cap) {
+			struct cap_hdr *h;
+			for (h = fe->req_cap; h; h = h->next)
+				pool_free(h->pool, s->req_cap[h->index]);
+		}
+
+		if (s->res_cap) {
+			struct cap_hdr *h;
+			for (h = fe->rsp_cap; h; h = h->next)
+				pool_free(h->pool, s->res_cap[h->index]);
+		}
+
 		pool_free(fe->rsp_cap_pool, s->res_cap);
 		pool_free(fe->req_cap_pool, s->req_cap);
 	}