fix logic

CMB-S4 · Sep 7, 2023 · e6d0104 · e6d0104
1 parent fdf7227
commit e6d0104
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/maps/python/map_modules.py b/maps/python/map_modules.py
@@ -555,7 +555,7 @@ def __init__(
         if isinstance(map_ids, str):
             map_ids = [map_ids]
         self.map_ids = map_ids
-        if map_ids or len(map_ids) == 1:
+        if map_ids and len(map_ids) == 1:
             collate = False
         self.collate = collate
         if self.collate: