diff --git a/lib/options/options_register.py b/lib/options/options_register.py
index fdbb1e4..cc2939e 100644
--- a/lib/options/options_register.py
+++ b/lib/options/options_register.py
@@ -154,6 +154,7 @@ def _sync_options_trades(
     raw_positions: list[dict[str, Any]] | None = None,
     force: bool = False,
 ) -> None:
+    global _OPTIONS_SYNC_LAST_AT
     ex = cfg.get("exchange_options")
     if ex is None:
         return