diff --git a/src/mito2/src/memtable/bulk.rs b/src/mito2/src/memtable/bulk.rs
index 40a9c17e04c..a2e04cfbc47 100644
--- a/src/mito2/src/memtable/bulk.rs
+++ b/src/mito2/src/memtable/bulk.rs
@@ -1573,7 +1573,7 @@ impl BulkMemtableBuilder {
         self
     }
 
-    pub fn with_float_field_encoding(mut self, encoding: FloatFieldEncoding) -> Self {
+    pub(super) fn with_float_field_encoding(mut self, encoding: FloatFieldEncoding) -> Self {
         self.float_field_encoding = encoding;
         self
     }