diff --git a/rust-arkworks/src/lib.rs b/rust-arkworks/src/lib.rs
index 7b06389..2497515 100644
--- a/rust-arkworks/src/lib.rs
+++ b/rust-arkworks/src/lib.rs
@@ -25,7 +25,7 @@ use secp256k1::sec1::Sec1EncodePoint;
 use sha2::digest::Output;
 use sha2::{Digest, Sha256};
 
-pub mod error;
+mod error;
 mod hash_to_curve;
 
 const EXPECT_MSG_DECODE: &str = "the value decoded have been generated by a function which is improbable to output a malformed hexstring (still a place for refactoring)";