diff --git a/server/daemon.py b/server/daemon.py
index 3c9e545..c1ab980 100644
--- a/server/daemon.py
+++ b/server/daemon.py
@@ -99,7 +99,7 @@ class Daemon(util.LoggedClass):
                 secs = 1
             else:
                 await asyncio.sleep(secs)
-                secs = min(16, secs * 2)
+                secs = min(max_secs, secs * 2)
 
     def logged_url(self, url):
         '''The host and port part, for logging.'''
diff --git a/server/db.py b/server/db.py
index aa5e129..58c7d9e 100644
--- a/server/db.py
+++ b/server/db.py
@@ -93,7 +93,7 @@ class DB(LoggedClass):
             if self.db_version not in self.DB_VERSIONS:
                 raise self.DBError('your DB version is {} but this software '
                                    'only handles versions {}'
-                                   .format(db_version, self.DB_VERSIONS))
+                                   .format(self.db_version, self.DB_VERSIONS))
             if state['genesis'] != self.coin.GENESIS_HASH:
                 raise self.DBError('DB genesis hash {} does not match coin {}'
                                    .format(state['genesis_hash'],