diff --git a/debian/changelog b/debian/changelog
index c9d5ec5..19a3446 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -5,6 +5,8 @@ dump1090-mutability (1.08.2302.14+1mu-7) UNRELEASED; urgency=medium
     lets dump1090 tolerate occasional USB glitches that make the dongle reset
     itself.
   * Fix some of the more glaring pthread bugs.
+  * Center the webmap on the receiver location.
+  * Mark config.js as a conffile, so user changes won't get overwritten.
 
  -- Oliver Jowett <oliver@mutability.co.uk>  Fri, 02 Jan 2015 22:27:44 +0000
 
diff --git a/debian/dump1090-mutability.conffiles b/debian/dump1090-mutability.conffiles
new file mode 100644
index 0000000..dd0d217
--- /dev/null
+++ b/debian/dump1090-mutability.conffiles
@@ -0,0 +1 @@
+usr/share/dump1090-mutability/html/config.js
diff --git a/public_html/script.js b/public_html/script.js
index 1216fb4..2d95fb5 100644
--- a/public_html/script.js
+++ b/public_html/script.js
@@ -60,6 +60,8 @@ function initialize() {
                                 SiteShow = true;
                                 SiteLat = data.lat;
                                 SiteLon = data.lon;
+                                CONST_CENTERLAT = data.lat;
+                                CONST_CENTERLON = data.lon;
                         }
                         
                         Dump1090Version = data.version;