diff -uNr apt-1.4.9/vendor/ubuntu/apt-vendor.ent apt-1.4.9.mod/vendor/ubuntu/apt-vendor.ent
--- apt-1.4.9/vendor/ubuntu/apt-vendor.ent	2019-01-18 12:42:07.000000000 +0200
+++ apt-1.4.9.mod/vendor/ubuntu/apt-vendor.ent	2019-11-12 22:53:10.802486744 +0200
@@ -1,9 +1,9 @@
 <!-- details about the keys used by the distribution -->
-<!ENTITY keyring-distro "Ubuntu">
-<!ENTITY keyring-package "<package>ubuntu-keyring</package>">
-<!ENTITY keyring-filename "<filename>/usr/share/keyrings/ubuntu-archive-keyring.gpg</filename>">
-<!ENTITY keyring-removed-filename "<filename>/usr/share/keyrings/ubuntu-archive-removed-keys.gpg</filename>">
-<!ENTITY keyring-master-filename "/usr/share/keyrings/ubuntu-master-keyring.gpg">
+<!ENTITY keyring-distro "Termux">
+<!ENTITY keyring-package "<package>termux-keyring</package>">
+<!ENTITY keyring-filename "<filename>@TERMUX_PREFIX@/share/keyrings/termux-archive-keyring.gpg</filename>">
+<!ENTITY keyring-removed-filename "<filename>@TERMUX_PREFIX@/share/keyrings/termux-archive-removed-keys.gpg</filename>">
+<!ENTITY keyring-master-filename "@TERMUX_PREFIX@/share/keyrings/termux-master-keyring.gpg">
 <!ENTITY keyring-uri "http://archive.ubuntu.com/ubuntu/project/ubuntu-archive-keyring.gpg">
 
 <!ENTITY sourceslist-list-format "deb http://us.archive.ubuntu.com/ubuntu &ubuntu-codename; main restricted