diff --git a/.eslintrc.js b/.eslintrc.js
index 7a43b923e8..3f8c5b66bd 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -7,6 +7,7 @@ module.exports = {
     ECL: 'writable',
   },
   env: {
+    es2020: true,
     node: true,
     browser: true,
   },
diff --git a/src/presets/ec/src/ec-esm.js b/src/presets/ec/src/ec-esm.js
index 82d23964cc..48de48a2ca 100644
--- a/src/presets/ec/src/ec-esm.js
+++ b/src/presets/ec/src/ec-esm.js
@@ -64,7 +64,6 @@ const ECL = {
 export { ECL };
 
 if (typeof globalThis !== 'undefined') {
-  // eslint-disable-next-line no-undef
   globalThis.ECL = ECL;
 } else if (typeof window !== 'undefined') {
   window.ECL = ECL;
diff --git a/src/presets/eu/src/eu-esm.js b/src/presets/eu/src/eu-esm.js
index 82d23964cc..48de48a2ca 100644
--- a/src/presets/eu/src/eu-esm.js
+++ b/src/presets/eu/src/eu-esm.js
@@ -64,7 +64,6 @@ const ECL = {
 export { ECL };
 
 if (typeof globalThis !== 'undefined') {
-  // eslint-disable-next-line no-undef
   globalThis.ECL = ECL;
 } else if (typeof window !== 'undefined') {
   window.ECL = ECL;