diff --git a/migrations/000015_alter_tasks_table_log_offset.up.sql b/migrations/000015_alter_tasks_table_log_offset.up.sql
index 7543ea9..1e6a5d5 100644
--- a/migrations/000015_alter_tasks_table_log_offset.up.sql
+++ b/migrations/000015_alter_tasks_table_log_offset.up.sql
@@ -1,2 +1,2 @@
 ALTER TABLE tasks
-ADD log_offset integer NOT NULL DEFAULT COALESCE(CARDINALITY(log),0);
+ADD log_offset integer NOT NULL DEFAULT 0;