diff --git a/README.md b/README.md
index 4096453..b37fd72 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,8 @@ docker build -t valhalla .
 
 ```
 docker run -it -d --restart always \
-    -v /home/test/russia-latest.osm.pbf:/home/data.osm.pbf \
+    -e OSM_DUMP_FILE=/home/russia-latest.osm.pbf \
+    -v /home/russia-latest.osm.pbf:/home/russia-latest.osm.pbf \
     -v /home/valhalla-cache:/home/valhalla \
     --name valhalla -p 8002:8002 valhalla
 ```
diff --git a/home/start.sh b/home/start.sh
index 7c52c6b..abf3760 100755
--- a/home/start.sh
+++ b/home/start.sh
@@ -2,7 +2,9 @@
 
 cd /home
 
-if [ /home/valhalla/valhalla_tiles.tar -ot /home/data.osm.pbf ]; then
+OSM_DUMP_FILE=${OSM_DUMP_FILE:-/home/data.osm.pbf}
+
+if [ /home/valhalla/valhalla_tiles.tar -ot $OSM_DUMP_FILE ]; then
     /home/update.sh
 fi
 
diff --git a/home/update.sh b/home/update.sh
index a8d52e8..9f5d09c 100755
--- a/home/update.sh
+++ b/home/update.sh
@@ -1,7 +1,9 @@
 #!/bin/bash
 
+OSM_DUMP_FILE=${OSM_DUMP_FILE:-/home/data.osm.pbf}
+
 cd /home/valhalla
-valhalla_build_tiles -c /home/valhalla.json /home/data.osm.pbf
+valhalla_build_tiles -c /home/valhalla.json $OSM_DUMP_FILE
 find valhalla_tiles | sort -n | tar cf valhalla_tiles2.tar --no-recursion -T -
 rm -rf valhalla_tiles *.bin *.txt
 mv valhalla_tiles2.tar valhalla_tiles.tar