diff --git a/src/defaults.js b/src/defaults.js
index 58a34c8..c48e731 100644
--- a/src/defaults.js
+++ b/src/defaults.js
@@ -1,5 +1,7 @@
 module.exports = {
   daysUntilLock: 365,
+  exemptLabels: [],
+  lockLabel: false,
   lockComment:
     'This thread has been automatically locked because ' +
     'it has not had recent activity. Please open a new issue ' +
diff --git a/src/lock.js b/src/lock.js
index 1ca34b8..b5e458d 100644
--- a/src/lock.js
+++ b/src/lock.js
@@ -23,7 +23,7 @@ module.exports = class Lock {
           body: lockComment
         });
       }
-      
+
       if (lockLabel) {
         this.logger.info(`[${issueUrl}] Labeling`);
         await this.context.github.issues.addLabels({
@@ -60,7 +60,7 @@ module.exports = class Lock {
       .replace(/\.\d{3}\w$/, '');
 
     let query = `repo:${owner}/${repo} is:closed updated:<${timestamp}`;
-    if (exemptLabels && exemptLabels.length) {
+    if (exemptLabels.length) {
       const queryPart = exemptLabels
         .map(label => `-label:"${label}"`)
         .join(' ');