diff --git a/wip-duuqnd/user-side-compiler/package.lisp b/wip-duuqnd/user-side-compiler/package.lisp
index 0255697..1aaae43 100644
--- a/wip-duuqnd/user-side-compiler/package.lisp
+++ b/wip-duuqnd/user-side-compiler/package.lisp
@@ -11,4 +11,4 @@
   (:export #:usc-init #:compile-string-to-bytes
            ;; Errors
            #:usc-error #:tokenizer-error #:missing-function-error
-           #:parser-error))
+           #:parser-error #:source))