diff --git a/.gitignore b/.gitignore
index c586fdd..a1891f9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 .idea
 *.*~
-osm_pbf
+osm_pbf/*.pbf
+osm_pbf/*.state.txt
diff --git a/osm_pbf/readme.md b/osm_pbf/readme.md
new file mode 100644
index 0000000..a6eec6f
--- /dev/null
+++ b/osm_pbf/readme.md
@@ -0,0 +1,4 @@
+This folder should contain a *.pbf and *.state.txt.
+
+The first pbf file encoutered will be imported, for this reason we recommend
+to only place one pbf in this folder so you can be sure which will be imported.