diff --git a/lib/internal/bootstrap/pre_execution.js b/lib/internal/bootstrap/pre_execution.js
index c7e9e9433aa8d4..2aa2a3b46c5fc1 100644
--- a/lib/internal/bootstrap/pre_execution.js
+++ b/lib/internal/bootstrap/pre_execution.js
@@ -364,7 +364,7 @@ function initializePolicy() {
       const realIntegrities = new Map();
       const integrityEntries = SRI.parse(experimentalPolicyIntegrity);
       let foundMatch = false;
-      for (var i = 0; i < integrityEntries.length; i++) {
+      for (let i = 0; i < integrityEntries.length; i++) {
         const {
           algorithm,
           value: expected