diff --git a/etc/symbol-releases.eld b/etc/symbol-releases.eld
index 21bbe3c793c..645ab77972d 100644
--- a/etc/symbol-releases.eld
+++ b/etc/symbol-releases.eld
@@ -9,6 +9,7 @@
 ;; TYPE being `fun' or `var'.
 
 (
+ ("29.1" fun plistp)
  ("28.1" fun always)
  ("26.1" fun when-let*)
  ("26.1" fun and-let*)