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-rw-r--r--synapse/storage/_base.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/synapse/storage/_base.py b/synapse/storage/_base.py
index 1582a58966..e6eefdd6fe 100644
--- a/synapse/storage/_base.py
+++ b/synapse/storage/_base.py
@@ -503,7 +503,7 @@ class SQLBaseStore(object):
                     lock=lock
                 )
                 defer.returnValue(result)
-            except self.database_engine.IntegrityError as e:
+            except self.database_engine.module.IntegrityError as e:
                 # presumably we raced with another transaction: let's retry.
                 logger.warn(
                     "IntegrityError when upserting into %s; retrying: %s",