diff --git a/install.sh b/install.sh
index 9f5bf55..fe9b985 100755
--- a/install.sh
+++ b/install.sh
@@ -16,8 +16,8 @@ function install_host {
     [ `id -u` -ne 0 ] && echo 'root privilege required' && exit 1
 
 	# required packages jq
-	dpkg-query --status jq
-	[ $? -ne 0 ] && sudo apt install -y jq
+	/usr/bin/dpkg-query --status jq
+	[ $? -ne 0 ] && /usr/bin/apt install -y jq
 
 
     if [[ ! $BASEDIR == '/opt/debian-bash' ]]; then