diff --git a/sandbox/sample-run.rkt b/sandbox/sample-run.rkt
index f1f8d75..0c3516a 100644
--- a/sandbox/sample-run.rkt
+++ b/sandbox/sample-run.rkt
@@ -21,4 +21,4 @@
 
 (define op (open-output-string))
 (assemble/write-invoke stmts op)
-(get-output-string op)
\ No newline at end of file
+(define js-code (get-output-string op))
\ No newline at end of file