diff --git a/Cross.toml b/Cross.toml
index 3558bb4..adf4557 100644
--- a/Cross.toml
+++ b/Cross.toml
@@ -1,3 +1,7 @@
+#this file contains partially the same statesments like the Cross.toml in FabFire-Provisioning-Tool.
+#The reason: when pulling as submodule, the Cross.toml file in fabfire_provision/ dir is ignored.
+#But when we clone FabFire-Provisioning-Tool separately, we need the Cross.toml inside fabfire_provision/
+
 #we build x86_64 natively, so we do not need this!
 #[target.x86_64-unknown-linux-gnu]
 #pre-build = [