diff --git a/composer.json b/composer.json
index 2dd2d25..0118399 100644
--- a/composer.json
+++ b/composer.json
@@ -21,10 +21,7 @@
   "autoload": {
     "psr-4": {
       "Ethereum\\": "src/"
-    },
-    "files": [
-      "src/helpers/ethereum-client-workaround-helpers.php"
-    ]
+    }
   },
   "license": "MIT",
   "authors": [
diff --git a/src/Ethereum.php b/src/Ethereum.php
index be63389..06eb200 100644
--- a/src/Ethereum.php
+++ b/src/Ethereum.php
@@ -8,8 +8,6 @@
 use Ethereum\EthDataType;
 use Exception;
 
-require_once __DIR__ . '/helpers/ethereum-client-workaround-helpers.php';
-
 /**
  * @defgroup client Ethereum Client
  *
@@ -66,8 +64,11 @@ class Ethereum extends EthereumStatic implements JsonRpcInterface
      */
     public function __construct($url = 'http://localhost:8545')
     {
+      // Require the workaround helpers, as autoload files in composer
+      //   doesn't work as expected.
+      require_once __DIR__ . '/helpers/ethereum-client-workaround-helpers.php';
 
-        $this->client = RpcClient::factory($url, [
+      $this->client = RpcClient::factory($url, [
             // Debug JsonRPC requests.
             'debug' => false,
         ]);