diff --git a/release/sbin/start-zks.sh b/release/sbin/start-zks.sh
index 1189dc9026b..de325f6ef72 100755
--- a/release/sbin/start-zks.sh
+++ b/release/sbin/start-zks.sh
@@ -34,10 +34,10 @@ do
 #  echo "start zookeeper in $dir with endpoint $host:$port "
 
   if [[ -f $dir/conf/zoo.cfg ]]; then
-    echo $dir"conf/zoo.cfg exists, using as default configuration"
+    echo "$dir/conf/zoo.cfg exists, using as default configuration"
     cmd="cd $dir && bin/zkServer.sh start $dir/conf/zoo.cfg"
   else
-    echo $dir"conf/zoo.cfg not exist, installation failed!"
+    echo "$dir/conf/zoo.cfg not exist, installation failed!"
     exit 1
   fi
   # special for java