diff --git a/migrations.go b/migrations.go
index 7df18890..e02c5b8e 100644
--- a/migrations.go
+++ b/migrations.go
@@ -86,6 +86,15 @@ var migrations = []Migration{
 		Name:  "repair_webhook_use_proxy",
 		UpSQL: repairWebhookUseProxySQL,
 	},
+	{
+		// wmiau.go reads days_to_sync_history when deciding how much history
+		// to request on connect, but no migration ever creates the column, so
+		// on a fresh install the query fails and the feature silently never
+		// runs (it only logs a warning and falls through to 0).
+		ID:    13,
+		Name:  "add_days_to_sync_history",
+		UpSQL: addDaysToSyncHistorySQL,
+	},
 }
 
 const changeIDToStringSQL = `
@@ -255,6 +264,17 @@ const repairWebhookUseProxySQL = `
 ALTER TABLE users ADD COLUMN IF NOT EXISTS webhook_use_proxy BOOLEAN DEFAULT TRUE;
 `
 
+const addDaysToSyncHistorySQL = `
+-- PostgreSQL version
+DO $$
+BEGIN
+    IF NOT EXISTS (SELECT 1 FROM information_schema.columns WHERE table_name = 'users' AND column_name = 'days_to_sync_history') THEN
+        ALTER TABLE users ADD COLUMN days_to_sync_history INTEGER DEFAULT 0;
+    END IF;
+END $$;
+-- SQLite version (handled in code)
+`
+
 // GenerateRandomID creates a random string ID
 func GenerateRandomID() (string, error) {
 	bytes := make([]byte, 16) // 128 bits
@@ -522,6 +542,12 @@ func applyMigration(db *sqlx.DB, migration Migration) error {
 		} else {
 			_, err = tx.Exec(migration.UpSQL)
 		}
+	} else if migration.ID == 13 {
+		if db.DriverName() == "sqlite" {
+			err = addColumnIfNotExistsSQLite(tx, "users", "days_to_sync_history", "INTEGER DEFAULT 0")
+		} else {
+			_, err = tx.Exec(migration.UpSQL)
+		}
 	} else if migration.ID == 10 || migration.ID == 12 {
 		if db.DriverName() == "sqlite" {
 			err = addColumnIfNotExistsSQLite(tx, "users", "webhook_use_proxy", "BOOLEAN DEFAULT 1")