diff --git a/platform-linux.md b/platform-linux.md
index 06e6863..98234bd 100644
--- a/platform-linux.md
+++ b/platform-linux.md
@@ -92,7 +92,7 @@ EOF
 
 Create the `yggdrasil` group:
 ```
-sudo addgroup --system yggdrasil
+sudo groupadd --system yggdrasil
 ```
 
 Install Yggdrasil: