diff --git a/bioblend/galaxy/histories/__init__.py b/bioblend/galaxy/histories/__init__.py
index e43080c84..750ed7c03 100644
--- a/bioblend/galaxy/histories/__init__.py
+++ b/bioblend/galaxy/histories/__init__.py
@@ -155,6 +155,7 @@ def get_histories(
         create_time_max: Optional[str] = None,
         update_time_min: Optional[str] = None,
         update_time_max: Optional[str] = None,
+        all: Optional[bool] = False,
         view: Optional[Literal["summary", "detailed"]] = None,
         keys: Optional[List[str]] = None,
         limit: Optional[int] = None,