diff --git a/src/sw_sup/artiq_legacy.md b/src/sw_sup/artiq_legacy.md
index ba1e6a7..2d21f73 100644
--- a/src/sw_sup/artiq_legacy.md
+++ b/src/sw_sup/artiq_legacy.md
@@ -32,6 +32,14 @@ git checkout release-6  # or release-5...
 cd ..
 ```
 
+Keep in mind that ARTIQ-6 scripts have been removed in `nix-scripts`, so you may need to checkout the last commit that still has them.
+
+```shell
+cd nix-scripts
+git checkout c590df48e0553a670e18ebf9d02047bfcfddb40d
+cd ..
+```
+
 ## Setting up the environment and building firmware
 
 Within ``fish`` shell (others may not work correctly), set up the ARTIQ build environment:
@@ -54,8 +62,7 @@ artiq_flash -V <variant> -d artiq_kasli --srcbuild
 There's a slight discrepancy from usual command - ``-V <variant>`` option is not present in ARTIQ-7+, but it is necessary here.
 
 If you want to send the binaries to a customer, there's no need packing up the whole build directory - only `top.bit`, `bootloader.bin`
-and `runtime.elf/fbi` or `satman.elf/fbi` are necessary. You can use the `prep_pkg.py` script from extras to package 
-them up neatly into a zip file for distributions:
+and `runtime.elf/fbi` or `satman.elf/fbi` are necessary. You can use the `prep_pkg.py` script from extras to package them up neatly into a zip file for distributions:
 
 ```shell
 python prep_pkg.py -v <variant> -d artiq_kasli/