diff --git a/db.ddl b/db.ddl
index 6b3e6ff19edf32e9849de87d96192440de16874e..30907f728437bc0731a2e79bb9f436efa8069131 100644
--- a/db.ddl
+++ b/db.ddl
@@ -16,7 +16,7 @@ CREATE TABLE zoom_meetings (
 
 CREATE TABLE zoom_schedule (
 	id		serial		PRIMARY KEY,
-	mid		bigint		NOT NULL REFERENCES zoom_meetings(mid) ON DELETE CASCADE,
+	mid		int		NOT NULL REFERENCES zoom_meetings(mid) ON DELETE CASCADE,
 	occurrence_id	bigint		DEFAULT 0,		-- Occurrence for recurring meetings, 0 otherwise
 	start_time	timestamp	NOT NULL,
 	duration	int		NOT NULL,		-- minutes