diff --git a/index.js b/index.js
index 16322a9..25fc384 100644
--- a/index.js
+++ b/index.js
@@ -104,8 +104,6 @@ class Funnel extends Plugin {
     this._setupFilter('exclude');
 
     this._matchedWalk = this.canMatchWalk();
-
-    this._instantiatedStack = (new Error()).stack;
     this._buildStart = undefined;
   }