diff --git a/lib/levels.js b/lib/levels.js
index 2429c19..98a5e9b 100644
--- a/lib/levels.js
+++ b/lib/levels.js
@@ -5,24 +5,29 @@ function Level(level, levelStr) {
 
 /**
  * converts given String to corresponding Level
- * @param {String} sArg String value of Level
+ * @param {String} sArg String value of Level OR Log4js.Level
  * @param {Log4js.Level} defaultLevel default Level, if no String representation
  * @return Level object
  * @type Log4js.Level
  */
 function toLevel(sArg, defaultLevel) {
 
-    if (sArg === null) {
-	return defaultLevel;
-    }
+  if (sArg === null) {
+	  return defaultLevel;
+  }
 
-    if (typeof sArg == "string") {
-	var s = sArg.toUpperCase();
-	if (module.exports[s]) {
+  if (typeof sArg == "string") {
+	  var s = sArg.toUpperCase();
+	  if (module.exports[s]) {
 	    return module.exports[s];
-	}
-    }
-    return defaultLevel;
+	  }
+	  else {
+	    return defaultLevel;
+	  }
+  }
+
+  return toLevel(sArg.toString());
+
 };
 
 Level.prototype.toString = function() {