diff --git a/Octane/pdfjs.js b/Octane/pdfjs.js
index 9cfa0eb3..b70f2a34 100644
--- a/Octane/pdfjs.js
+++ b/Octane/pdfjs.js
@@ -77,6 +77,7 @@ function tearDownPdfJS() {
       throw message;
     }
   }
+  canvas_logs = [];
   // Allow GC of global state.
   delete this.PDFJS;
   delete this.PdfJS_window;
@@ -33052,6 +33053,10 @@ class Benchmark {
     runIteration() {
         runPdfJS();
     }
+
+    validate() {
+        tearDownPdfJS();
+    }
 }
 
 setupPdfJS();