diff --git a/lib/facade.js b/lib/facade.js
index 4c4c781..f2ef3cc 100644
--- a/lib/facade.js
+++ b/lib/facade.js
@@ -365,6 +365,7 @@ Facade.prototype.library = function() {
   var library = this.proxy('options.library');
   if (!library) return { name: 'unknown', version: null };
   if (typeof library === 'string') return { name: library, version: null };
+  if (typeof library.name !== 'string') library.name = 'unknown';
   return library;
 };