diff --git a/build/controller/Dockerfile b/build/controller/Dockerfile
index 5ee7ea47b..fb5ba45b0 100644
--- a/build/controller/Dockerfile
+++ b/build/controller/Dockerfile
@@ -13,7 +13,7 @@
 # limitations under the License.
 ARG GO_BASE_IMAGE
 ARG DISTROLESS_BASE_IMAGE=gcr.io/distroless/static:nonroot
-FROM --platform=${BUILDPLATFORM} $GO_BASE_IMAGE as builder
+FROM --platform=${BUILDPLATFORM} $GO_BASE_IMAGE AS builder
 
 WORKDIR /workspace
 COPY . .
diff --git a/build/scheduler/Dockerfile b/build/scheduler/Dockerfile
index 131d27d2e..49e246d50 100644
--- a/build/scheduler/Dockerfile
+++ b/build/scheduler/Dockerfile
@@ -13,7 +13,7 @@
 # limitations under the License.
 ARG GO_BASE_IMAGE
 ARG DISTROLESS_BASE_IMAGE=gcr.io/distroless/static:nonroot
-FROM --platform=${BUILDPLATFORM} $GO_BASE_IMAGE as builder
+FROM --platform=${BUILDPLATFORM} $GO_BASE_IMAGE AS builder
 
 WORKDIR /workspace
 COPY . .