diff --git a/etc/symbol-releases.eld b/etc/symbol-releases.eld
index b08f3e7ad73..bdf5858102e 100644
--- a/etc/symbol-releases.eld
+++ b/etc/symbol-releases.eld
@@ -22,6 +22,7 @@
  ("22.1" fun version=)
  ("22.1" fun version<)
  ("22.1" fun version<=)
+ ("22.1" fun read-number)
  ("19.7" fun defsubst)
  ("19.34" fun make-directory)
  ("18.59" fun mark)