diff --git a/README.md b/README.md
index 6e86c59..fa2a270 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,10 @@
+# Spacecruft pystrf
+This is the spacecruft clone of `pystrf`.
+
+Upstream:
+
+* https://gitlab.com/librespacefoundation/pystrf.git
+
 # pystrf
 Python based radio frequency satellite tracking.