diff --git a/python/lsst/daf/butler/core/quantum.py b/python/lsst/daf/butler/core/quantum.py
index d3cdb77e89..b18f594046 100644
--- a/python/lsst/daf/butler/core/quantum.py
+++ b/python/lsst/daf/butler/core/quantum.py
@@ -243,7 +243,7 @@ def __init__(
         self._datastore_records = datastore_records
 
     def to_simple(self, accumulator: DimensionRecordsAccumulator | None = None) -> SerializedQuantum:
-        """Convert this class to a simple python type.
+        """Converts this class to a simple python type.
 
         This makes it suitable for serialization.