diff --git a/rust/blockstore/src/arrow/block/delta/single_column_storage.rs b/rust/blockstore/src/arrow/block/delta/single_column_storage.rs
index f62f724d76a..82cd4ca628b 100644
--- a/rust/blockstore/src/arrow/block/delta/single_column_storage.rs
+++ b/rust/blockstore/src/arrow/block/delta/single_column_storage.rs
@@ -296,7 +296,7 @@ impl SingleColumnStorage<Vec<u32>> {
             "value",
             arrow::datatypes::DataType::List(Arc::new(Field::new(
                 "item",
-                arrow::datatypes::DataType::Int32,
+                arrow::datatypes::DataType::UInt32,
                 true,
             ))),
             true,