diff --git a/collect_fake_json.sh b/collect_fake_json.sh
new file mode 100755
index 0000000..87ed1c7
--- /dev/null
+++ b/collect_fake_json.sh
@@ -0,0 +1,6 @@
+#! /bin/bash
+
+for device in $(smartctl --scan | awk '{ print $1}')
+do
+  smartctl --json --xall $device | jq > $(basename $device).json
+done
diff --git a/smartctl_exporter.yaml b/smartctl_exporter.yaml
index 7740083..798037b 100644
--- a/smartctl_exporter.yaml
+++ b/smartctl_exporter.yaml
@@ -1,7 +1,7 @@
 smartctl_exporter:
   bind_to: "[::1]:9633"
   url_path: "/metrics"
-  fake_json: no
+  fake_json: yes
   smartctl_location: /usr/sbin/smartctl
   collect_not_more_than_period: 20s
   devices: