diff --git a/Installation-without-Docker.md b/Installation-without-Docker.md
index 413fdf0..6eba4ff 100644
--- a/Installation-without-Docker.md
+++ b/Installation-without-Docker.md
@@ -139,7 +139,7 @@ user@host:szuru/server$ source python_modules/bin/activate # enters the sandbox
     Pay extra attention to these fields:
 
     - data directory,
-    - data URL,
+    - data URL, (@dante4, you need to change postgres to postgresql)
     - database,
     - the `smtp` section.