diff --git a/changelog.d/4694.feature b/changelog.d/4694.feature
new file mode 100644
index 0000000000..d053ab5a25
--- /dev/null
+++ b/changelog.d/4694.feature
@@ -0,0 +1 @@
+Add basic optional sentry integration
diff --git a/synapse/config/metrics.py b/synapse/config/metrics.py
index 8be19d94c4..ed0498c634 100644
--- a/synapse/config/metrics.py
+++ b/synapse/config/metrics.py
@@ -59,6 +59,8 @@ class MetricsConfig(Config):
         #
         #sentry:
         #    dsn: "..."
+
+        # Whether or not to report anonymized homeserver usage statistics.
         """
 
         if report_stats is None: