diff --git a/google/genai/_common.py b/google/genai/_common.py
index f4a6984f7..42da9dc95 100644
--- a/google/genai/_common.py
+++ b/google/genai/_common.py
@@ -656,7 +656,7 @@ def _missing_(cls, value: Any) -> Any:
           unknown_enum_val._name_ = str(value)  # pylint: disable=protected-access
           unknown_enum_val._value_ = value  # pylint: disable=protected-access
           return unknown_enum_val
-        except:
+        except Exception:
           return None