diff --git a/wrangler.toml b/wrangler.toml
index 58d728e..437a593 100644
--- a/wrangler.toml
+++ b/wrangler.toml
@@ -1,3 +1,4 @@
 name = "sub-worker"
 main = "_worker.js"
-compatibility_date = "2025-06-21"
\ No newline at end of file
+compatibility_date = "2025-06-21"
+keep_vars = true
\ No newline at end of file