diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index d629d49..af381af 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -24,4 +24,4 @@ jobs:
           K6_PROMETHEUS_RW_SERVER_URL: ${{ secrets.K6_PROMETHEUS_RW_SERVER_URL }}
         with:
           path: test.js
-          flags: --output experimental-prometheus-rw
+          flags: --out experimental-prometheus-rw