diff --git a/lisp/progmodes/python.el b/lisp/progmodes/python.el
index e332bd8f61e..7f28f583543 100644
--- a/lisp/progmodes/python.el
+++ b/lisp/progmodes/python.el
@@ -2871,7 +2871,8 @@ virtualenv."
           "(" (group (1+ digit)) ")" (1+ (not (any "("))) "()")
      1 2))
   "`compilation-error-regexp-alist' for inferior Python."
-  :type '(alist regexp))
+  :type '(alist regexp)
+  :version "30.1")
 
 (defcustom python-shell-dedicated nil
   "Whether to make Python shells dedicated by default.