diff --git a/fickit-pkg/mdadm/Dockerfile b/fickit-pkg/mdadm/Dockerfile
index 59e23d30..78b65798 100644
--- a/fickit-pkg/mdadm/Dockerfile
+++ b/fickit-pkg/mdadm/Dockerfile
@@ -2,6 +2,7 @@ FROM alpine AS mirror
 
 RUN mkdir -p /out/etc/apk && cp -r /etc/apk/* /out/etc/apk/
 RUN apk add --no-cache --initdb -p /out \
+    busybox \
     mdadm
 RUN rm -rf /out/etc/apk /out/lib/apk /out/var/cache