diff --git a/src/github.com/matrix-org/dendrite/clientapi/auth/storage/accounts/account_data_table.go b/src/github.com/matrix-org/dendrite/clientapi/auth/storage/accounts/account_data_table.go
index af0c5ea9e..b1502b9ff 100644
--- a/src/github.com/matrix-org/dendrite/clientapi/auth/storage/accounts/account_data_table.go
+++ b/src/github.com/matrix-org/dendrite/clientapi/auth/storage/accounts/account_data_table.go
@@ -81,6 +81,7 @@ func (s *accountDataStatements) selectAccountData(localpart string) (
 		return
 	}
 
+	global = []gomatrixserverlib.ClientEvent{}
 	rooms = make(map[string][]gomatrixserverlib.ClientEvent)
 
 	for rows.Next() {