diff --git a/etc/os-release b/etc/os-release
index 59e72ad..a798b85 100644
--- a/etc/os-release
+++ b/etc/os-release
@@ -3,6 +3,7 @@ NAME="Debian GNU/Linux"
 VERSION_ID="13"
 VERSION="13 (trixie)"
 VERSION_CODENAME=trixie
+DEBIAN_VERSION_FULL=13.0
 ID=debian
 HOME_URL="https://www.debian.org/"
 SUPPORT_URL="https://www.debian.org/support"