1 files changed, 1 insertions, 1 deletions
diff --git a/synapse/storage/_base.py b/synapse/storage/_base.py
index e30514cd5e..fa5199104a 100644
--- a/synapse/storage/_base.py
+++ b/synapse/storage/_base.py
@@ -330,7 +330,7 @@ class SQLBaseStore(object):
                                     continue
                             raise
                 except Exception as e:
-                    logger.debug("[TXN FAIL] {%s}", name, e)
+                    logger.debug("[TXN FAIL] {%s} %s", name, e)
                     raise
                 finally:
                     end = time.time() * 1000