diff --git a/docs/digitalbitbox.md b/docs/digitalbitbox.md
index e61c3b6..1c83efe 100644
--- a/docs/digitalbitbox.md
+++ b/docs/digitalbitbox.md
@@ -12,6 +12,7 @@ Current implemented commands are:
 - `restore`
 - `backup`
 - `displayaddress`
+- `signmessage`
 
 ## Usage Notes