diff --git a/README.md b/README.md
index c417b0f..8c80e1e 100644
--- a/README.md
+++ b/README.md
@@ -187,6 +187,6 @@ Only `runtime/templates/` and `runtime/README.md` are tracked.
 The Gitea workflow expects two act runners:
 
 - `windows-latest`: builds the native app and runs native tests.
-- `nubuntu-latest`: installs UI dependencies and runs the Vite build.
+- `ubuntu-latest`: installs UI dependencies and runs the Vite build.
 
 If your Windows runner stores the Blackmagic SDK outside the repo, configure `GPUDIRECT_DIR` in the runner environment or adjust the workflow configure command to pass `-DGPUDIRECT_DIR=...`.