diff --git a/.github/workflows/gha_workflow_llama_stack_tests.yml b/.github/workflows/gha_workflow_llama_stack_tests.yml
index 402b04ef1..47b7f3c10 100644
--- a/.github/workflows/gha_workflow_llama_stack_tests.yml
+++ b/.github/workflows/gha_workflow_llama_stack_tests.yml
@@ -72,6 +72,7 @@ env:
   REPORTS_GEN: ""
 
   RANK: 0
+  WORLD_SIZE: 4
 
 jobs:
   execute_workflow: