diff --git a/EventStream/data/dataset_polars.py b/EventStream/data/dataset_polars.py
index 9be90299..5a0dd1f9 100644
--- a/EventStream/data/dataset_polars.py
+++ b/EventStream/data/dataset_polars.py
@@ -33,7 +33,7 @@
 from .vocabulary import Vocabulary
 
 # We need to do this so that categorical columns can be reliably used via category names.
-pl.enable_string_cache(True)
+pl.enable_string_cache()
 
 
 @dataclasses.dataclass(frozen=True)