diff --git a/debian/lighttpd/89-dump1090.conf b/debian/lighttpd/89-dump1090.conf
index fda8a6e..9856b9e 100644
--- a/debian/lighttpd/89-dump1090.conf
+++ b/debian/lighttpd/89-dump1090.conf
@@ -11,3 +11,8 @@ alias.url += (
   "/dump1090/data/" => "/run/dump1090-mutability/",
   "/dump1090/" => "/usr/share/dump1090-mutability/html/"
 )
+
+# The stat cache must be disabled, as receiver.json changes
+# rapidly and lighttpd's stat cache often ends up with the
+# wrong content length.
+server.stat-cache-engine    = "disable"