diff --git a/ezctl b/ezctl
index 9529591..f956695 100755
--- a/ezctl
+++ b/ezctl
@@ -318,7 +318,7 @@ function add-node() {
     sed -n '/^\[kube_master/,/^\[harbor/p' "$BASE/clusters/$1/hosts"|grep -E "^$2$|^$2 " && { logger error "node $2 already existed in $BASE/clusters/$1/hosts"; return 2; }
 
     # add '/usr/bin/python' soft link, needed in some OS (ubuntu 16.04+) 
-    [[ ! -e /usr/bin/python && -e /usr/bin/python3 ]] && ssh "$2" ln -s /usr/bin/python3 /usr/bin/python
+    ssh "$2" ln -s /usr/bin/python3 /usr/bin/python || echo ""
 
     logger info "add $2 into 'kube_node' group"
     NODE_INFO="${@:2}"
@@ -336,7 +336,7 @@ function add-master() {
     sed -n '/^\[kube_master/,/^\[kube_node/p' "$BASE/clusters/$1/hosts"|grep -E "^$2$|^$2 " && { logger error "master $2 already existed!"; return 2; }
 
     # add '/usr/bin/python' soft link, needed in some OS (ubuntu 16.04+) 
-    [[ ! -e /usr/bin/python && -e /usr/bin/python3 ]] && ssh "$2" ln -s /usr/bin/python3 /usr/bin/python
+    ssh "$2" ln -s /usr/bin/python3 /usr/bin/python || echo ""
 
     logger info "add $2 into 'kube_master' group"
     MASTER_INFO="${@:2}"
@@ -360,7 +360,7 @@ function add-etcd() {
     sed -n '/^\[etcd/,/^\[kube_master/p' "$BASE/clusters/$1/hosts"|grep -E "^$2$|^$2 " && { logger error "etcd $2 already existed!"; return 2; }
 
     # add '/usr/bin/python' soft link, needed in some OS (ubuntu 16.04+) 
-    [[ ! -e /usr/bin/python && -e /usr/bin/python3 ]] && ssh "$2" ln -s /usr/bin/python3 /usr/bin/python
+    ssh "$2" ln -s /usr/bin/python3 /usr/bin/python || echo ""
 
     logger info "add $2 into 'etcd' group"
     ETCD_INFO="${@:2}"