1 files changed, 2 insertions, 1 deletions
diff --git a/synapse/http/client.py b/synapse/http/client.py
index 575510637e..7b23116556 100644
--- a/synapse/http/client.py
+++ b/synapse/http/client.py
@@ -95,7 +95,8 @@ class SimpleHttpClient(object):
             Deferred: Succeeds when we get *any* 2xx HTTP response, with the
             HTTP body as JSON.
         Raises:
-            On a non-2xx HTTP response.
+            On a non-2xx HTTP response. The response body will be used as the
+            error message.
         """
         if len(args):
             query_bytes = urllib.urlencode(args, True)