diff --git a/lib/Cake/Utility/Debugger.php b/lib/Cake/Utility/Debugger.php
index 281453f5f..0b7a96bed 100644
--- a/lib/Cake/Utility/Debugger.php
+++ b/lib/Cake/Utility/Debugger.php
@@ -181,7 +181,9 @@ class Debugger {
  * as well as export the variable using exportVar. By default the log is written to the debug log.
  *
  * @param mixed $var Variable or content to log
- * @param int $level type of log to use. Defaults to LOG_DEBUG
+ * @param int|string $level Type of log to use. Defaults to LOG_DEBUG. When value is an integer
+ *    or a string matching the recognized levels, then it will
+ *    be treated log levels. Otherwise it's treated as scope.
  * @param int $depth The depth to output to. Defaults to 3.
  * @return void
  * @link https://book.cakephp.org/2.0/en/development/debugging.html#Debugger::log