From 5a422e66155b1e566a4eecef45fc9cf8177c1436 Mon Sep 17 00:00:00 2001
From: jao <jao@gnu.org>
Date: Thu, 27 Oct 2022 02:34:33 +0100
Subject: fix: correctly display side-effect output in evaluations

---
 geiser-chez.el | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/geiser-chez.el b/geiser-chez.el
index 8b7af24..a2213f3 100644
--- a/geiser-chez.el
+++ b/geiser-chez.el
@@ -188,7 +188,7 @@ Return its local name."
 
 (defun geiser-chez--display-error (_module key msg)
   "Display an error found during evaluation with the given KEY and message MSG."
-  (when msg
+  (when (listp msg)
     (save-excursion
       (insert (car msg))
       (insert "\n")
-- 
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