diff --git a/backlightctl b/backlightctl
index e101f01..7423a79 100755
--- a/backlightctl
+++ b/backlightctl
@@ -1,7 +1,7 @@
 #!/bin/sh
 set -euf
 
-BACKLIGHT_PATH="${BACKLIGHT_PATH:-/sys/class/backlight/amdgpu_bl0}"
+BACKLIGHT_PATH="/sys/class/backlight/amdgpu_bl0"
 
 errecho() {
 	>&2 printf '%s\n' "$*"
diff --git a/readme.md b/readme.md
index af49dc9..df0bb0d 100644
--- a/readme.md
+++ b/readme.md
@@ -2,7 +2,7 @@
 A simple script to change the backlight brightness value on laptops. Mostly made as a workaround for [this bug](https://bugzilla.kernel.org/show_bug.cgi?id=203905).
 
 ## Configuration
-The only configurable variable is the backlight path. It defaults to `/sys/class/backlight/amdgpu_bl0`. You can change `BACKLIGHT_PATH` to point to the file path.
+The only configurable variable is the backlight path. It defaults to `/sys/class/backlight/amdgpu_bl0`. You can change `BACKLIGHT_PATH` (in the script itself, for security reasons bla bla bla) to point to the file path.
 
 ## Usage
 ```