diff --git a/.eslintrc.js b/.eslintrc.js
index 68d30dcb3491..13cefc0aa419 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -27,11 +27,12 @@ module.exports = {
     'docs/**',
     'coverage/',
     'app/scripts/chromereload.js',
+    'app/scripts/lockdown.umd.js',
     'app/vendor/**',
     'test/e2e/send-eth-with-private-key-test/**',
     'nyc_output/**',
     '.vscode/**',
-    'lavamoat/*/policy.json',
+    'lavamoat/*/policy.json'
   ],
 
   extends: [
diff --git a/.prettierignore b/.prettierignore
index 3059730e1299..deb0fe10cc43 100644
--- a/.prettierignore
+++ b/.prettierignore
@@ -5,6 +5,7 @@ builds/**
 test-*/**
 coverage/
 app/vendor/**
+app/scripts/lockdown.umd.js
 .nyc_output/**
 .vscode/**
 test/e2e/send-eth-with-private-key-test/**
diff --git a/app/scripts/runLockdown.js b/app/scripts/runLockdown.js
index a034a5e08267..2918368e7e07 100644
--- a/app/scripts/runLockdown.js
+++ b/app/scripts/runLockdown.js
@@ -6,7 +6,7 @@ try {
     errorTaming: 'unsafe',
     mathTaming: 'unsafe',
     dateTaming: 'unsafe',
-    overrideTaming: 'severe'
+    overrideTaming: 'severe',
   });
 } catch (error) {
   // If the `lockdown` call throws an exception, it interferes with the