diff --git a/plugins/kerberos/kerberos.plugin.zsh b/plugins/kerberos/kerberos.plugin.zsh
new file mode 100644
index 000000000..7017add5c
--- /dev/null
+++ b/plugins/kerberos/kerberos.plugin.zsh
@@ -0,0 +1,4 @@
+#Execute a command without a kerberos ccache.
+function nok () {
+    KRB5CCNAME='' $*
+}