From cbbdf14be386c08494d7c9c2aa7c6392921f8271 Mon Sep 17 00:00:00 2001
From: Erik Johnston <erik@matrix.org>
Date: Wed, 12 Jul 2023 15:11:59 +0100
Subject: [PATCH] fixup

---
 synapse/logging/opentracing.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/synapse/logging/opentracing.py b/synapse/logging/opentracing.py
index 9a7fd7026b..d8478c3f67 100644
--- a/synapse/logging/opentracing.py
+++ b/synapse/logging/opentracing.py
@@ -683,7 +683,7 @@ def get_prometheus_exemplar(
 
     trace_id = getattr(span, "trace_id", None)
 
-    return trace_id
+    return {"trace_id": trace_id}
 
 
 @ensure_active_span("set a tag")