diff --git a/src/Loop.php b/src/Loop.php
index ec8d581..c911ce4 100644
--- a/src/Loop.php
+++ b/src/Loop.php
@@ -287,11 +287,9 @@ final class Loop
      *      "on_readable"   => ["enabled" => int, "disabled" => int],
      *      "on_writable"   => ["enabled" => int, "disabled" => int],
      *      "on_signal"     => ["enabled" => int, "disabled" => int],
-     *      "keep_alive"    => int,
+     *      "watchers"      => ["referenced" => int, "unreferenced" => int],
      *  ];
      *
-     * keep_alive refers to the number of referenced watchers.
-     *
      * Implementations MAY optionally add more information in the array but
      * at minimum the above key => value format MUST always be provided.
      *
diff --git a/src/LoopDriver.php b/src/LoopDriver.php
index 08c019b..152b4bc 100644
--- a/src/LoopDriver.php
+++ b/src/LoopDriver.php
@@ -157,11 +157,9 @@ interface LoopDriver
      *      "on_readable"   => ["enabled" => int, "disabled" => int],
      *      "on_writable"   => ["enabled" => int, "disabled" => int],
      *      "on_signal"     => ["enabled" => int, "disabled" => int],
-     *      "keep_alive"    => int,
+     *      "watchers"      => ["referenced" => int, "unreferenced" => int],
      *  ];
      *
-     * keep_alive refers to the number of referenced watchers.
-     *
      * Implementations MAY optionally add more information in the array but
      * at minimum the above key => value format MUST always be provided.
      *