diff --git a/doc/admin/config.rst b/doc/admin/config.rst
index 93adda2c1f..1a9b74e74f 100644
--- a/doc/admin/config.rst
+++ b/doc/admin/config.rst
@@ -12,7 +12,7 @@ at the following locations. It will try to read the file from the specified path
 the following order. The file that is found *last* will override the settings from
 the files found before.
 
-1. ``PREFIX_CONFIG_FILE`` environment variable
+1. ``PRETIX_CONFIG_FILE`` environment variable
 2. ``/etc/pretix/pretix.cfg``
 3. ``~/.pretix.cfg``
 4. ``pretix.cfg`` in the current working directory