diff --git a/debian/dump1090-mutability.conffiles b/debian/dump1090-mutability.conffiles
index 7cbb2b5..4a65fcc 100644
--- a/debian/dump1090-mutability.conffiles
+++ b/debian/dump1090-mutability.conffiles
@@ -4,3 +4,4 @@
 /usr/share/dump1090-mutability/html/planeObject.js
 /usr/share/dump1090-mutability/html/style.css
 /usr/share/dump1090-mutability/html/markers.js
+/usr/share/dump1090-mutability/html/formatter.js