diff --git a/packages/common/src/common.ts b/packages/common/src/common.ts
index 7b598ae1ba..4b27244ba2 100644
--- a/packages/common/src/common.ts
+++ b/packages/common/src/common.ts
@@ -841,8 +841,13 @@ export class Common {
    * Returns a deep copy of this {@link Common} instance.
    */
   copy(): Common {
-    const copy = Object.assign(Object.create(Object.getPrototypeOf(this)), this)
-    copy.events = new EventEmitter()
+    const copy = new Common({
+      chain: { ...this._chainParams },
+      eips: [...this._eips],
+      customCrypto: this.customCrypto,
+    })
+    copy.updateParams(this._params)
+    copy.setHardfork(this.hardfork())
     return copy
   }
 }