diff --git a/Dockerfile b/Dockerfile
index fa49011..40e26c4 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -96,7 +96,7 @@ RUN echo "_dev_null: /dev/null" > /etc/aliases \
      scache/unix/chroot=n
 
 ADD confd /etc/confd/
-ADD postmap.sh /start.d/zz-postmap.sh
+ADD postmap_all /usr/local/bin/
 
 VOLUME ["/etc/postfix","/ssl","/var/spool/postfix"]
 EXPOSE 25/tcp 587/tcp
diff --git a/postmap.sh b/postmap_all
similarity index 100%
rename from postmap.sh
rename to postmap_all