diff --git a/src/server/index.tsx b/src/server/index.tsx
index a45e1b0f..65f7308c 100644
--- a/src/server/index.tsx
+++ b/src/server/index.tsx
@@ -27,7 +27,7 @@ const [hostname, port] = process.env["LEMMY_UI_HOST"]
 const extraThemesFolder =
   process.env["LEMMY_UI_EXTRA_THEMES_FOLDER"] || "./extra_themes";
 
-if (process.env.NODE_ENV !== "development") {
+if (!process.env["LEMMY_UI_DEBUG"]) {
   server.use(function (_req, res, next) {
     res.setHeader(
       "Content-Security-Policy",