diff --git a/src/core.js b/src/core.js
index caee13d..27d6776 100644
--- a/src/core.js
+++ b/src/core.js
@@ -126,7 +126,7 @@ function printBuffer(buffer, options) {
     }
 
     if (logger.withTrace) {
-      logger.groupCollapsed(`TRACE`);
+      logger.groupCollapsed('TRACE');
       logger.trace();
       logger.groupEnd();
     }
diff --git a/src/defaults.js b/src/defaults.js
index 0103ae9..5e69eba 100644
--- a/src/defaults.js
+++ b/src/defaults.js
@@ -1,6 +1,6 @@
 export default {
   level: 'log',
-  logger: console,
+  logger: typeof console !== 'undefined' ? console : undefined,
   logErrors: true,
   collapsed: undefined,
   predicate: undefined,