diff --git a/CHANGELOG.md b/CHANGELOG.md
index 862abc967e..4b4035e54c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,7 @@
 Contributed:
 
 - Ledger support for Quartz (Thanks to https://github.com/CertainLach)
+- Add flag to disable same-version esm/cjs warnings (Thanks to https://github.com/forgetso)
 
 Changes:
 
diff --git a/packages/util/src/versionDetect.ts b/packages/util/src/versionDetect.ts
index 795a18ae3f..97a03062be 100644
--- a/packages/util/src/versionDetect.ts
+++ b/packages/util/src/versionDetect.ts
@@ -121,7 +121,7 @@ export function detectPackage ({ name, path, type, version }: PackageInfo, pathO
   // if we have more than one entry at DIFFERENT version types then warn. If there is more than one entry at the same
   // version and ESM/CJS dual warnings are disabled, then do not display warnings
   const entriesSameVersion = entry.every((e) => e.version === version);
-  const esmCjsWarningDisabled = POLKADOTJS_DISABLE_ESM_CJS_WARNING_FLAG in process.env && process.env[POLKADOTJS_DISABLE_ESM_CJS_WARNING_FLAG] === '1';
+  const esmCjsWarningDisabled = xglobal.process?.env?.[POLKADOTJS_DISABLE_ESM_CJS_WARNING_FLAG] === '1';
   const multipleEntries = entry.length !== 1;
   const disableWarnings = esmCjsWarningDisabled && entriesSameVersion;