diff --git a/debian/postrm b/debian/postrm
index 04ca325..2894909 100644
--- a/debian/postrm
+++ b/debian/postrm
@@ -1,11 +1,16 @@
 #!/bin/sh
 set -e
 
+. /usr/share/debconf/confmodule
+
 CONDUIT_CONFIG_PATH=/etc/matrix-conduit
 CONDUIT_DATABASE_PATH=/var/lib/matrix-conduit
 
 case $1 in
   purge)
+    # Remove debconf changes from the db
+    db_purge
+
     # Per https://www.debian.org/doc/debian-policy/ch-files.html#behavior
     # "configuration files must be preserved when the package is removed, and
     #  only deleted when the package is purged."