diff --git a/conf/config_install.json b/conf/config_install.json
index 2150850..adb8a6d 100644
--- a/conf/config_install.json
+++ b/conf/config_install.json
@@ -1,6 +1,6 @@
 {
   "system": {
-    "data_directory": "__DATA_DIR__",
+    "datadirectory": "__DATA_DIR__",
     "trusted_domains": [
       "localhost",
       "__DOMAIN__"