1 files changed, 2 insertions, 1 deletions
diff --git a/sx.el b/sx.el
index 7d67835..cda1acd 100644
--- a/sx.el
+++ b/sx.el
@@ -107,7 +107,8 @@ is intentionally skipped."
 (defun sx-user-error (format-string &rest args)
   "Like `user-error', but prepend FORMAT-STRING with \"[sx]\".
 See `format'."
-  (signal 'user-error (list (apply #'format (concat "[sx] " format) args))))
+  (signal 'user-error
+          (list (apply #'format (concat "[sx] " format-string) args))))
 
 (defun sx-message (format-string &rest args)
   "Display FORMAT-STRING as a message with ARGS.