diff --git a/manifests/init.pp b/manifests/init.pp
index f595742..1cfe88b 100644
--- a/manifests/init.pp
+++ b/manifests/init.pp
@@ -157,7 +157,7 @@ class mastodon (
     require  => Vcsrepo['rbenv'],
   }
   exec { 'install_ruby':
-    command     => "${mastodon_home}/.rbenv/bin/rbenv install 3.2.2",
+    command     => ["${mastodon_home}/.rbenv/bin/rbenv", 'install', '3.2.2'],
     path        => "${mastodon_home}/.rbenv/bin:/usr/sbin:/usr/bin:/sbin:/bin",
     environment => [
       'RUBY_CONFIGURE_OPTS=--with-jemalloc',