diff --git a/src/lib.rs b/src/lib.rs
index 6d39cd0..d65e4b3 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -36,6 +36,7 @@ mod transaction;
 #[cfg(test)]
 mod tests;
 
+pub use mapped::ReaderTrait;
 pub use transaction::TransactionHandle;
 
 use allocator::{AllocatorState, GeneralPurposeAllocator, SlabListPointer, SlabPointer};