diff --git a/lib/MultiReporters.js b/lib/MultiReporters.js
index 2f49c2b..3cb3c8d 100644
--- a/lib/MultiReporters.js
+++ b/lib/MultiReporters.js
@@ -111,7 +111,7 @@ MultiReporters.prototype.done = function (failures, fn) {
     }
 
     var reportersWithDoneHandler = this._reporters.filter(function (reporter) {
-        return typeof reporter.done === 'function';
+        return reporter && (typeof reporter.done === 'function');
     });
 
     var numberOfReportersWithDoneHandler = _.size(reportersWithDoneHandler);