diff --git a/zsh/aliases.zsh b/zsh/aliases.zsh
index 2106bfc..c188690 100644
--- a/zsh/aliases.zsh
+++ b/zsh/aliases.zsh
@@ -120,8 +120,8 @@ if [ $? -eq 0 ]; then
     kube() {
         local kube_config=$HOME/.kubes/$1/config
         if [ $# -ne 1 ]; then
-            echo >&2 error: kube expects a single argument
-            return 1
+            rm ~/.kubes/current-cube
+            export KUBECONFIG=""
         elif [ ! -f $kube_config ]; then
             echo >&2 error: no such kube config: $kube_config
             return 1