Fix initialization of backend.DatabaseError

1 files changed, 1 insertions, 1 deletions

diff --git a/yoyo/backends.py b/yoyo/backends.py
index f37f4df..f5b00db 100644
--- a/yoyo/backends.py
+++ b/yoyo/backends.py
@@ -115,11 +115,11 @@ class DatabaseBackend(object):
 
     def __init__(self, dburi, migration_table):
         self.uri = dburi
+        self.DatabaseError = self.driver.DatabaseError
         self._connection = self.connect(dburi)
         self.migration_table = migration_table
         self.create_migrations_table()
         self.has_transactional_ddl = self._check_transactional_ddl()
-        self.DatabaseError = self.driver.DatabaseError
 
     def _load_driver_module(self):
         """