diff --git a/src/proto_http.c b/src/proto_http.c
index 29b1b68d1..8ccbc2bcd 100644
--- a/src/proto_http.c
+++ b/src/proto_http.c
@@ -8364,7 +8364,7 @@ void http_reset_txn(struct stream *s)
 	s->target = NULL;
 	/* re-init store persistence */
 	s->store_count = 0;
-	s->uniq_id = global.req_count++;
+	s->uniq_id = HA_ATOMIC_XADD(&global.req_count, 1);
 
 	s->req.flags |= CF_READ_DONTWAIT; /* one read is usually enough */
 
diff --git a/src/stream.c b/src/stream.c
index 0f2ccf010..574c02f3d 100644
--- a/src/stream.c
+++ b/src/stream.c
@@ -152,7 +152,7 @@ struct stream *stream_new(struct session *sess, enum obj_type *origin)
 	s->si[0].flags = SI_FL_NONE;
 	s->si[1].flags = SI_FL_ISBACK;
 
-	s->uniq_id = global.req_count++;
+	s->uniq_id = HA_ATOMIC_XADD(&global.req_count, 1);
 
 	/* OK, we're keeping the stream, so let's properly initialize the stream */
 	LIST_INIT(&s->back_refs);