diff --git a/.well-known/owncloud-codesigning-challenge.txt b/.well-known/owncloud-codesigning-challenge.txt
new file mode 100644
index 0000000..af560d4
--- /dev/null
+++ b/.well-known/owncloud-codesigning-challenge.txt
@@ -0,0 +1 @@
+18e37fd21bb60094c40d1c86970d68d97cbcedfc91b0d56b9a9e91dc6d3920f0
\ No newline at end of file