diff --git a/Dockerfile b/Dockerfile
index 33424ff..fa8a6ef 100755
--- a/Dockerfile
+++ b/Dockerfile
@@ -43,12 +43,12 @@ COPY ./src/MistoxWebsite.Server/ ./
 ARG TARGETOS TARGETARCH
 
 # Build the source
-RUN if [ $TARGETARCH = "arm64" ]; then \
+RUN if [ "$TARGETARCH" = "arm64" ]; then \
         RID="arm64" \
-    elif [ "$TARGETARCHARCH" = "amd64" ]; then \
+    elif [ "$TARGETARCH" = "amd64" ]; then \
         RID="x64" \
     else \
-        echo "Unsupported ARCH: $ARCH" \
+        echo "Unsupported ARCH: $TARGETARCH" \
         exit 1 \
     fi && \
     dotnet publish './MistoxWebsite.Server.csproj' -c Release -r $TARGETOS-$RID -o /app/publish