diff --git a/Dockerfile b/Dockerfile
index 5f6f7be7c..2dc2c8326 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -26,7 +26,7 @@ RUN arch=$(dpkg --print-architecture) && \
     if [ "$arch" = "amd64" ]; then \
       dpkg-deb -x /tmp/dumb-init /tmp/dumb-init-dir && \
       cp /tmp/dumb-init-dir/usr/bin/dumb-init /usr/local/bin/dumb-init; \
-    elif [ "$arch" = "amd64" ]; then \
+    elif [ "$arch" = "arm64" ]; then \
       cp /tmp/dumb-init /usr/local/bin/dumb-init; \
     else \
       echo "Unsupported architecture: $arch" && exit 1; \