diff --git a/install_puppet.sh b/install_puppet.sh
index 61ec8b1dad..58a37cc50b 100755
--- a/install_puppet.sh
+++ b/install_puppet.sh
@@ -223,7 +223,7 @@ function setup_puppet_opensuse {
 }
 
 function setup_puppet_gentoo {
-    emaint sync
+    echo yes | emaint sync -a
     emerge -q --jobs=4 puppet-agent
     sed -i '/templatedir/d' /etc/puppetlabs/puppet/puppet.conf
 }