diff --git a/sickbeard/databases/cache_db.py b/sickbeard/databases/cache_db.py
index 3f047bc6..e8a4b441 100644
--- a/sickbeard/databases/cache_db.py
+++ b/sickbeard/databases/cache_db.py
@@ -88,4 +88,4 @@ class AddSceneExceptionsRefresh(AddSceneExceptionsCustom):
 
     def execute(self):
         self.connection.action(
-            "CREATE TABLE scene_exceptions_refresh (list TEXT, last_refreshed INTEGER)")
\ No newline at end of file
+            "CREATE TABLE scene_exceptions_refresh (list TEXT PRIMARY KEY, last_refreshed INTEGER)")
\ No newline at end of file