diff --git a/src/builtin/builtin.go b/src/builtin/builtin.go
index da0ace1498..668c799ca7 100644
--- a/src/builtin/builtin.go
+++ b/src/builtin/builtin.go
@@ -284,9 +284,10 @@ func panic(v any)
 // by restoring normal execution and retrieves the error value passed to the
 // call of panic. If recover is called outside the deferred function it will
 // not stop a panicking sequence. In this case, or when the goroutine is not
-// panicking, or if the argument supplied to panic was nil, recover returns
-// nil. Thus the return value from recover reports whether the goroutine is
-// panicking.
+// panicking, recover returns nil.
+//
+// Prior to Go 1.21, recover would also return nil if panic is called with
+// a nil argument. See [panic] for details.
 func recover() any
 
 // The print built-in function formats its arguments in an