diff --git a/Dockerfile b/Dockerfile
index 72644e641..463b5b3f8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -9,7 +9,7 @@
 FROM alpine:3.6
 ENV DIR /tmp/vis
 WORKDIR $DIR
-RUN apk update && apk add musl-dev fortify-headers gcc make libtermkey-dev ncurses-dev ncurses-static lua5.3-dev lua5.3-lpeg lua-lpeg-dev acl-dev libarchive-dev xz-dev xz bzip2-dev
+RUN apk update && apk add musl-dev fortify-headers gcc make libtermkey-dev ncurses-dev ncurses-static lua5.3-dev lua5.3-lpeg lua-lpeg-dev acl-dev libarchive-dev xz-dev xz bzip2-dev tar
 RUN sed -i 's/Libs: /Libs: -L${INSTALL_CMOD} /' /usr/lib/pkgconfig/lua5.3.pc
 RUN mv /usr/lib/lua/5.3/lpeg.a /usr/lib/lua/5.3/liblpeg.a
 RUN sed -i 's/-ltermkey/-ltermkey -lunibilium/' /usr/lib/pkgconfig/termkey.pc
diff --git a/Makefile b/Makefile
index 653657f59..6be1b6281 100644
--- a/Makefile
+++ b/Makefile
@@ -79,7 +79,8 @@ vis-single-payload.inc: $(EXECUTABLES) lua/*
 	echo '#ifndef VIS_SINGLE_PAYLOAD_H' > $@
 	echo '#define VIS_SINGLE_PAYLOAD_H' >> $@
 	echo 'static unsigned char vis_single_payload[] = {' >> $@
-	tar c $(EXECUTABLES) $$(find lua -name '*.lua') | xz | od -t x1 -A none -v | \
+	tar --sort=name --mtime='2014-07-15 01:23Z' --owner=0 --group=0 --numeric-owner -c \
+		$(EXECUTABLES) $$(find lua -name '*.lua') | xz | od -t x1 -A none -v | \
 		sed 's/\([0-9a-f]\+\)/0x\1,/g;$$s/,$$/ };/' >> $@
 	echo '#endif' >> $@