diff --git a/.github/workflows/zephyr.yml b/.github/workflows/zephyr.yml
index 1ca25a44c90f..2f55bdcdf8e8 100644
--- a/.github/workflows/zephyr.yml
+++ b/.github/workflows/zephyr.yml
@@ -19,10 +19,11 @@ jobs:
         IPC_platforms: [
           # - IPC3 default
           imx8 imx8x imx8m,
+          tgl tgl-h,  # UNSUPPORTED! Will be removed
           # - IPC4 default
           mtl,
-          # Some IPC3 platforms support IPC4 too.
-          -i IPC4 tgl, -i IPC4 tgl-h,
+          # Temporary testbed for Zephyr development.
+          -i IPC4 tgl tgl-h,
         ]
         zephyr_revision: [
           manifest_revision,