diff --git a/config.json.sample b/config.json.sample
index 8801184..601495d 100644
--- a/config.json.sample
+++ b/config.json.sample
@@ -4,5 +4,6 @@
   "dbDatabase": "sampledb",
   "dbUser": "sampleuser",
   "dbPassword": "secret",
+  "encryptionKey": "12345678901234567890123456789012",
   "debug": false
 }