diff --git a/install.sh b/install.sh
index fe9b985..e322fcb 100755
--- a/install.sh
+++ b/install.sh
@@ -16,7 +16,7 @@ function install_host {
     [ `id -u` -ne 0 ] && echo 'root privilege required' && exit 1
 
 	# required packages jq
-	/usr/bin/dpkg-query --status jq
+	/usr/bin/dpkg-query --status jq >/dev/null 2>&1
 	[ $? -ne 0 ] && /usr/bin/apt install -y jq