diff --git a/composer.json b/composer.json
index 53375bfed7..2b1534d34b 100644
--- a/composer.json
+++ b/composer.json
@@ -4,6 +4,11 @@
     "version": "1.4.2",
     "url": "https://getcomposer.org/download/1.4.2/composer.phar",
     "bin": "composer.ps1",
+    "persist": [],
+    "env_set": {
+        "COMPOSER_HOME": "$persist_dir"
+    },
+    "env_add_path": "$persist_dir\\vendor\\bin",
     "pre_install": "
         echo 'if($args -eq \"selfupdate\" -or $args -eq \"self-update\") { & scoop update composer }' | out-file $dir\\composer.ps1
         echo 'else { & php (join-path \"$psscriptroot\" \"composer.phar\") @args }' | out-file $dir\\composer.ps1 -append