diff --git a/Dockerfile b/Dockerfile
index 498577e1..d011b20e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,8 +4,10 @@
 FROM --platform=$BUILDPLATFORM golang:1.21-alpine AS builder
 WORKDIR /app
 ARG TARGETARCH
-ARG TARGETPLATFORM
+ARG TARGETOS
 ENV CGO_ENABLED=0
+ENV GOOS=$TARGETOS
+ENV GOARCH=$TARGETARCH
 
 RUN apk --no-cache --update add \
   build-base \
@@ -15,9 +17,7 @@ RUN apk --no-cache --update add \
 
 COPY . .
 
-RUN GOOS="$(echo "${TARGETPLATFORM}" | cut -d/ -f1)" \
-    GOARCH="$(echo "${TARGETPLATFORM}" | cut -d/ -f2)" \
-    go build -o build/x-ui main.go
+RUN go build -o build/x-ui main.go
 RUN ./DockerInit.sh "$TARGETARCH"
 
 # ========================================================