diff --git a/src/format/mod.rs b/src/format/mod.rs
index 40d9e9d..ccfd1d9 100644
--- a/src/format/mod.rs
+++ b/src/format/mod.rs
@@ -3,6 +3,7 @@ use crate::util::interrupt;
 
 pub mod io;
 pub mod stream;
+pub use self::stream::{Stream, StreamMut};
 
 pub mod chapter;