diff --git a/changelog.d/14414.doc b/changelog.d/14414.doc
new file mode 100644
index 0000000000..23dd963d47
--- /dev/null
+++ b/changelog.d/14414.doc
@@ -0,0 +1 @@
+Edit sample Nginx reverse proxy configuration to use HTTP/1.1. Contributed by Brad Jones.
diff --git a/docs/reverse_proxy.md b/docs/reverse_proxy.md
index 4e7a1d4435..48dbc1c58e 100644
--- a/docs/reverse_proxy.md
+++ b/docs/reverse_proxy.md
@@ -79,6 +79,9 @@ server {
         # Nginx by default only allows file uploads up to 1M in size
         # Increase client_max_body_size to match max_upload_size defined in homeserver.yaml
         client_max_body_size 50M;
+	
+	# Synapse responses may be chunked, which is an HTTP/1.1 feature.
+	proxy_http_version 1.1;
     }
 }
 ```