diff --git a/lib/lns.lua b/lib/lns.lua
index 2f702d7..0bee2bd 100644
--- a/lib/lns.lua
+++ b/lib/lns.lua
@@ -1,4 +1,5 @@
 local cache = {}
+local cache_file = "/var/cache/lns_cache.db"
 
 settings.define("lns_client.allow_dynamic_lns_hosts", {
     description = "Allow dynamic LNS hosts",
@@ -14,8 +15,8 @@ settings.define("lns_client.lns_server", {
 
 
 function _load_cache()
-    if fs.exists("lns_cache.db") then
-        db = fs.open("lns_cache.db", "r")
+    if fs.exists(cache_file) then
+        db = fs.open(cache_file, "r")
         db_contents = db.readAll()
         db.close()
 
@@ -24,7 +25,7 @@ function _load_cache()
 end
 
 function _save_cache()
-    db = fs.open("lns_cache.db", "w")
+    db = fs.open(cache_file, "w")
     db.write(textutils.serialize(cache))
     db.close()
 end