diff --git a/src/fastfield/mod.rs b/src/fastfield/mod.rs
index 612c4e1b3..5142163fb 100644
--- a/src/fastfield/mod.rs
+++ b/src/fastfield/mod.rs
@@ -31,7 +31,7 @@ pub use self::delete::DeleteBitSet;
 pub use self::delete::write_delete_bitset;
 pub use self::error::{FastFieldNotAvailableError, Result};
 pub use self::facet_reader::FacetReader;
-pub use self::multivalued::MultiValueIntFastFieldReader;
+pub use self::multivalued::{MultiValueIntFastFieldWriter, MultiValueIntFastFieldReader};
 pub use self::reader::FastFieldReader;
 pub use self::serializer::FastFieldSerializer;
 pub use self::writer::{FastFieldsWriter, IntFastFieldWriter};
diff --git a/src/fastfield/writer.rs b/src/fastfield/writer.rs
index 0751c8bc8..a396da9e9 100644
--- a/src/fastfield/writer.rs
+++ b/src/fastfield/writer.rs
@@ -68,12 +68,11 @@ impl FastFieldsWriter {
     ///
     /// Returns None if the field does not exist, or is not
     /// configured as a multivalued fastfield in the schema.
-    pub(crate) fn get_multivalue_writer(
+    pub fn get_multivalue_writer(
         &mut self,
         field: Field,
     ) -> Option<&mut MultiValueIntFastFieldWriter> {
         // TODO optimize
-        // TODO expose for users
         self.multi_values_writers
             .iter_mut()
             .find(|multivalue_writer| multivalue_writer.field() == field)