diff --git a/install/zammad-install.sh b/install/zammad-install.sh
index b63d7c53..f239413f 100644
--- a/install/zammad-install.sh
+++ b/install/zammad-install.sh
@@ -27,7 +27,7 @@ msg_ok "Installed Dependencies"
 
 msg_info "Setting up Elasticsearch"
 curl -fsSL https://artifacts.elastic.co/GPG-KEY-elasticsearch | sudo gpg --dearmor -o /usr/share/keyrings/elasticsearch-keyring.gpg
-echo "deb [signed-by=/usr/share/keyrings/elasticsearch-keyring.gpg] https://artifacts.elastic.co/packages/7.x/apt stable main" | sudo tee /etc/apt/sources.list.d/elastic-7.x.list
+echo "deb [signed-by=/usr/share/keyrings/elasticsearch-keyring.gpg] https://artifacts.elastic.co/packages/7.x/apt stable main" | sudo tee /etc/apt/sources.list.d/elastic-7.x.list >/dev/null
 $STD apt-get update
 $STD apt-get -y install elasticsearch
 echo "-Xms2g" >>/etc/elasticsearch/jvm.options