diff --git a/retropikzel/shell.scm b/retropikzel/shell.scm
index a70a049..54353c1 100644
--- a/retropikzel/shell.scm
+++ b/retropikzel/shell.scm
@@ -32,4 +32,4 @@
   (lines->list (open-input-string (shell cmd)) '()))
 
 (define (shell->sexp cmd)
-  (read (open-input-string (shell cmd)) '()))
+  (read (open-input-string (shell cmd))))