diff --git a/runbooks/source/working-with-tflock.html.md.erb b/runbooks/source/working-with-tflock.html.md.erb
index eea5984e..eabd106a 100644
--- a/runbooks/source/working-with-tflock.html.md.erb
+++ b/runbooks/source/working-with-tflock.html.md.erb
@@ -34,7 +34,7 @@ Due to the architecture difference between our mac m* chips and the pipeline eve
 Because the team is mainly on mac m* chips we are generally running a different architecture (arm64) to the terraform that will run in the pipeline (amd64). Therefore if we want to commit a compatible lock file you must run before adding it to git:
 
 ```
-terraform providers lock -platform=amd64
+terraform providers lock -platform=linux_amd64
 ```
 
 #### Further reading