diff --git a/pkg/flypg/admin/admin.go b/pkg/flypg/admin/admin.go
index 73d4caf..d47965f 100644
--- a/pkg/flypg/admin/admin.go
+++ b/pkg/flypg/admin/admin.go
@@ -297,7 +297,7 @@ func SetReadonly(ctx context.Context, pg *pgx.Conn, enable bool) error {
 			continue
 		}
 
-		sql := fmt.Sprintf("ALTER DATABASE %s SET default_transaction_read_only=%v;", db.Name, enable)
+		sql := fmt.Sprintf("ALTER DATABASE %q SET default_transaction_read_only=%v;", db.Name, enable)
 		if _, err = pg.Exec(ctx, sql); err != nil {
 			return fmt.Errorf("failed to alter readonly state on db %s: %s", db.Name, err)
 		}