diff --git a/.github/workflows/build_CPU.yml b/.github/workflows/build_CPU.yml
index 4e2dc80..d491078 100644
--- a/.github/workflows/build_CPU.yml
+++ b/.github/workflows/build_CPU.yml
@@ -41,7 +41,7 @@ jobs:
         name: Build and push CPU
         uses: docker/build-push-action@v5
         with:
-          platform: linux/amd64, linux/arm/v6, linux/arm/v7, linux/arm64
+          platforms: linux/amd64, linux/arm/v6, linux/arm/v7, linux/arm64
           file: ./Dockerfile.cpu
           push: true
           tags: mccloud/subgen:cpu