diff --git a/trust-k8s-ca.sh b/trust-k8s-ca.sh
index f46776354a45865b5d338c2cc7f9c61fdcfa5e4a..3260208c0401020ff841f64554e13f165ff5bff8 100644
--- a/trust-k8s-ca.sh
+++ b/trust-k8s-ca.sh
@@ -1,4 +1,4 @@
 # the cabundle file needed to trust ssl endpoints
 
-export OS_CACERT=$(PWD)/rc-k8s-cabundle.cer
+export OS_CACERT=`pwd`/rc-k8s-cabundle.cer
 export CURL_CA_BUNDLE=$OS_CACERT