diff --git a/couchpotato/core/plugins/library/main.py b/couchpotato/core/plugins/library/main.py
index 0d3d09e4..4cdc323f 100644
--- a/couchpotato/core/plugins/library/main.py
+++ b/couchpotato/core/plugins/library/main.py
@@ -1,7 +1,6 @@
 from couchpotato import get_session
 from couchpotato.core.event import addEvent, fireEventAsync, fireEvent
 from couchpotato.core.helpers.encoding import toUnicode, simplifyString
-from couchpotato.core.helpers.variable import mergeDicts
 from couchpotato.core.logger import CPLog
 from couchpotato.core.plugins.base import Plugin
 from couchpotato.core.settings.model import Library, LibraryTitle, File
@@ -137,10 +136,12 @@ class LibraryPlugin(Plugin):
 
         db = get_session()
         library = db.query(Library).filter_by(identifier = identifier).first()
+        dates = library.info.get('release_date')
 
-        if library.info.get('release_date', {}).get('expires', 0) < time.time():
+        if dates and dates.get('expires', 0) < time.time():
             dates = fireEvent('movie.release_date', identifier = identifier, merge = True)
-            library.info = mergeDicts(library.info, {'release_date': dates})
+            library.info['release_date'] = dates
+            library.info = library.info
             db.commit()
 
         dates = library.info.get('release_date', {})