1 files changed, 2 insertions, 0 deletions
diff --git a/synapse/config/server.py b/synapse/config/server.py
index b9e0c0b300..187b4301a0 100644
--- a/synapse/config/server.py
+++ b/synapse/config/server.py
@@ -960,6 +960,8 @@ class ServerConfig(Config):
         #
         # This option replaces federation_ip_range_blacklist in Synapse v1.25.0.
         #
+        # Note: The value is ignored when an HTTP proxy is in use
+        #
         #ip_range_blacklist:
 %(ip_range_blacklist)s