diff --git a/docs/files.md b/docs/files.md
index c6f8a87..7119633 100644
--- a/docs/files.md
+++ b/docs/files.md
@@ -4,3 +4,4 @@
 - Docs: Documentation around Dart DLC
 - DLC: Core functions to DLCs
 - Lightning: Core functions around Lightning Network support DLCs
+- Bitcoin: Core functions for Bitcoin and DLCs