diff --git a/scripts/delete.sh b/scripts/delete.sh
index eeb26f89f..4be949dc9 100755
--- a/scripts/delete.sh
+++ b/scripts/delete.sh
@@ -1,4 +1,4 @@
-#/bin/bash
+#!/bin/bash
 
 set -e
 
@@ -12,7 +12,7 @@ set -e
 #
 # Usage:
 #     export RUNNER_CFG_PAT=<yourPAT>
-#     ./delete.sh scope name
+#     ./delete.sh <scope> [<name>]
 #
 #      scope required  repo (:owner/:repo) or org (:organization)
 #      name  optional  defaults to hostname.  name to delete
@@ -26,17 +26,17 @@ set -e
 runner_scope=${1}
 runner_name=${2}
 
-echo "Deleting runner ${runner_name} @ ${runner_scope}"
-
-function fatal()
+function fatal() 
 {
    echo "error: $1" >&2
    exit 1
 }
 
 if [ -z "${runner_scope}" ]; then fatal "supply scope as argument 1"; fi
-if [ -z "${runner_name}" ]; then fatal "supply name as argument 2"; fi
 if [ -z "${RUNNER_CFG_PAT}" ]; then fatal "RUNNER_CFG_PAT must be set before calling"; fi
+if [ -z "${runner_name}" ]; then runner_name=`hostname`; fi
+
+echo "Deleting runner ${runner_name} @ ${runner_scope}"
 
 which curl || fatal "curl required.  Please install in PATH with apt-get, brew, etc"
 which jq || fatal "jq required.  Please install in PATH with apt-get, brew, etc"