diff --git a/oml/library.py b/oml/library.py
index 9e49c55..037f0c4 100644
--- a/oml/library.py
+++ b/oml/library.py
@@ -323,7 +323,7 @@ def sync_db():
                         first = False
                         logger.debug('sync items')
                     i.update(commit=False)
-                    if i.info['mediastate'] == 'unavailable' and state.tasks:
+                    if i.info.get('mediastate') == 'unavailable' and state.tasks:
                         state.tasks.queue('getpreview', i.id)
                     commit = True
                     #logger.debug('sync:%s', i)