From 168e857b978a7e1c497703103f2e2b8f3e1aaa50 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Motiejus=20Jak=C5=A1tys?= <motiejus@uber.com>
Date: Sun, 20 Dec 2020 11:35:14 +0200
Subject: [PATCH] Add elevation

---
 contours/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/contours/Makefile b/contours/Makefile
index e580c15..7faa97b 100644
--- a/contours/Makefile
+++ b/contours/Makefile
@@ -24,7 +24,7 @@ db/contour_%: contour_%.gpkg db/.ready
 	touch $@
 
 contour_%.gpkg: all.tif
-	gdal_contour -nln $(basename $@) -i $(subst _,.,$*) -a z $^ $@
+	gdal_contour -a z -nln $(basename $@) -i $(subst _,.,$*) -a z $^ $@
 
 ifeq ($(VARIANT),2009)
 all.tif: all.vrt all.xyz