diff --git a/src/egamma_tnp/triggers/elept_caloidvt_gsftrkidt.py b/src/egamma_tnp/triggers/elept_caloidvt_gsftrkidt.py
index 651c8acc..b33f99c9 100644
--- a/src/egamma_tnp/triggers/elept_caloidvt_gsftrkidt.py
+++ b/src/egamma_tnp/triggers/elept_caloidvt_gsftrkidt.py
@@ -109,7 +109,7 @@ def __init__(
             preprocess_args : dict, optional
                 Extra arguments to pass to coffea.dataset_tools.preprocess(). The default is {}.
             extra_filter : Callable, optional
-                A extra function to filter the events. The default is None.
+                An extra function to filter the events. The default is None.
                 Must take in a coffea NanoEventsArray and return a filtered NanoEventsArray of the events you want to keep.
             extra_filter_args : dict, optional
                 Extra arguments to pass to extra_filter. The default is {}.
diff --git a/src/egamma_tnp/triggers/elept_wptight_gsf.py b/src/egamma_tnp/triggers/elept_wptight_gsf.py
index a31f3786..a3b97e01 100644
--- a/src/egamma_tnp/triggers/elept_wptight_gsf.py
+++ b/src/egamma_tnp/triggers/elept_wptight_gsf.py
@@ -109,7 +109,7 @@ def __init__(
             preprocess_args : dict, optional
                 Extra arguments to pass to coffea.dataset_tools.preprocess(). The default is {}.
             extra_filter : Callable, optional
-                A extra function to filter the events. The default is None.
+                An extra function to filter the events. The default is None.
                 Must take in a coffea NanoEventsArray and return a filtered NanoEventsArray of the events you want to keep.
             extra_filter_args : dict, optional
                 Extra arguments to pass to extra_filter. The default is {}.