diff --git a/s48/binary-parse/interfaces.scm b/s48/binary-parse/interfaces.scm
index aa7b202..3b9cbed 100644
--- a/s48/binary-parse/interfaces.scm
+++ b/s48/binary-parse/interfaces.scm
@@ -1,2 +1,2 @@
 (define-interface binary-parse-interface
-  (export))
\ No newline at end of file
+  (export make-bit-reader))
\ No newline at end of file