diff --git a/lib/logger.js b/lib/logger.js
index 8d6554b..0a83b25 100644
--- a/lib/logger.js
+++ b/lib/logger.js
@@ -29,7 +29,7 @@ var formatters = {
 
 function Logger(options) {
   var defaults = JSON.parse(JSON.stringify(Logger.DEFAULTS));
-  options = Object.assign(defaults, options || {});
+  options = Object.assign(defaults, options ?? {});
   var catcher = deLiner();
   var emitter = catcher;
   var transforms = [