diff --git a/build/autoloaderchecker.sh b/build/autoloaderchecker.sh
index 9bf8b17a8c..60bc4c0c39 100755
--- a/build/autoloaderchecker.sh
+++ b/build/autoloaderchecker.sh
@@ -9,7 +9,7 @@ then
 else
   echo "Composer not found: fetching"
   php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
-  php composer-setup.php
+  php composer-setup.php --2
   php -r "unlink('composer-setup.php');"
 fi