diff --git a/src/map_to_curve.rs b/src/map_to_curve.rs
index 24b0525..8854844 100644
--- a/src/map_to_curve.rs
+++ b/src/map_to_curve.rs
@@ -75,9 +75,9 @@ fn xor(x: &[u8], y: &[u8]) -> Result<Vec<u8>, InternalPakeError> {
     Ok(x.iter().zip(y).map(|(&x1, &x2)| x1 ^ x2).collect())
 }
 
-// Corresponds to the expand_message_xmd() function defined in
-// https://www.ietf.org/archive/id/draft-irtf-cfrg-hash-to-curve-10.txt
-pub(crate) fn expand_message_xmd<H: Hash>(
+/// Corresponds to the expand_message_xmd() function defined in
+/// https://www.ietf.org/archive/id/draft-irtf-cfrg-hash-to-curve-10.txt
+pub fn expand_message_xmd<H: Hash>(
     msg: &[u8],
     dst: &[u8],
     len_in_bytes: usize,