diff --git a/README.md b/README.md
index 376bf2b..6a2f8e1 100644
--- a/README.md
+++ b/README.md
@@ -27,6 +27,7 @@ Debian Buster (10) or higher system:
 * qemu-user-static
 * binfmt-support
 * time
+* kpartx
 
 Do note that –at least currently– vmdb2 uses some syntax that is available
 only in the version in testing (Bullseye).