diff --git a/activitysim/abm/models/trip_destination.py b/activitysim/abm/models/trip_destination.py
index 57318732a..8a3320a20 100644
--- a/activitysim/abm/models/trip_destination.py
+++ b/activitysim/abm/models/trip_destination.py
@@ -1336,8 +1336,6 @@ def run_trip_destination(
     # returns a series of size_terms for each chooser's dest_zone_id and purpose with chooser index
     size_term_matrix = DataFrameMatrix(alternatives)
 
-    # don't need size terms in alternatives, just zone_id index
-    alternatives = alternatives.drop(alternatives.columns, axis=1)
     alternatives.index.name = model_settings.ALT_DEST_COL_NAME
 
     sample_list = []