diff --git a/dash.el b/dash.el
index 3b5dd5b..be50166 100644
--- a/dash.el
+++ b/dash.el
@@ -3092,7 +3092,7 @@ In types: a -> b -> a"
 Arguments denoted by <> will be left unspecialized.
 
 See SRFI-26 for detailed description."
-  (declare (debug (&rest &or "<>" form)))
+  (declare (debug (&optional sexp &rest &or "<>" form)))
   (let* ((i 0)
          (args (--keep (when (eq it '<>)
                          (setq i (1+ i))