diff --git a/Setup-Computer-Debian-12.md b/Setup-Computer-Debian-12.md
index 344a586..fc65f27 100644
--- a/Setup-Computer-Debian-12.md
+++ b/Setup-Computer-Debian-12.md
@@ -172,7 +172,7 @@ cd ~/work/stxm/build/PixelatorController
 
 # run GUI in 2nd Terminal
 cd ~/work/stxm/build/PixelatorGUI
-./scripts/PixelatorGUI -nH # -nH for no Hardware uses Ports 56561 and 56562
+./scripts/PixelatorGUI-nH # -nH for no Hardware uses Ports 56561 and 56562
 
 ```