diff --git a/src/IssueProcessor.ts b/src/IssueProcessor.ts
index f1c2d93db..f74260db7 100644
--- a/src/IssueProcessor.ts
+++ b/src/IssueProcessor.ts
@@ -273,7 +273,7 @@ export class IssueProcessor {
       // should this issue be marked stale?
       const shouldBeStale = !IssueProcessor._updatedSince(
         issue.updated_at,
-        this.options.daysBeforeStale
+        daysBeforeStale
       );
 
       // determine if this issue needs to be marked stale first