diff --git a/Dockerfile b/Dockerfile
index c311ca8b..b82a0f92 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -16,9 +16,9 @@ RUN if [ "$TARGETARCH" = "arm64" ]; then apt update && apt install gcc-aarch64-l
 
 # Build the X-ui binary
 RUN if [ "$TARGETARCH" = "arm64" ]; then \
-        GOOS=linux GOARCH=arm64 CC=aarch64-linux-gnu-gcc go build -o xui-release -v main.go; \
+        TARGETARCH GOOS=linux GOARCH=arm64 CC=aarch64-linux-gnu-gcc go build -o xui-release -v main.go; \
     elif [ "$TARGETARCH" = "amd64" ]; then \
-        GOOS=linux GOARCH=amd64 go build -o xui-release -v main.go; \
+        TARGETARCH GOOS=linux GOARCH=amd64 go build -o xui-release -v main.go; \
     fi
 
 # Start a new stage using the base image