diff --git a/src/mux_h1.c b/src/mux_h1.c
index 857b1c380..4a4b5edc4 100644
--- a/src/mux_h1.c
+++ b/src/mux_h1.c
@@ -3168,6 +3168,18 @@ static void h1_show_fd(struct buffer *msg, struct connection *conn)
 		if (h1s->cs)
 			chunk_appendf(msg, " .cs.flg=0x%08x .cs.data=%p",
 				      h1s->cs->flags, h1s->cs->data);
+
+		chunk_appendf(&trash, " .subs=%p", h1s->subs);
+		if (h1s->subs) {
+			if (h1s->subs) {
+				chunk_appendf(&trash, "(ev=%d tl=%p", h1s->subs->events, h1s->subs->tasklet);
+				chunk_appendf(&trash, " tl.calls=%d tl.ctx=%p tl.fct=",
+					      h1s->subs->tasklet->calls,
+					      h1s->subs->tasklet->context);
+				resolve_sym_name(&trash, NULL, h1s->subs->tasklet->process);
+				chunk_appendf(&trash, ")");
+			}
+		}
 	}
 }