diff --git a/third_party/matomo/processMatomo.js b/third_party/matomo/processMatomo.js
index dbf145073d1e2ee4af987a5edbb8d77f244614cf..b36867cb1b6c2104888ab11f938a63894cf0fe79 100644
--- a/third_party/matomo/processMatomo.js
+++ b/third_party/matomo/processMatomo.js
@@ -19,7 +19,7 @@
   
   const processed = matomoJs
     .replace(/MATOMO_URL/g, JSON.stringify(process.env.MATOMO_URL || null))
-    .replace(/MATOMO_ID/g, JSON.stringify(process.env.MATOMO_ID || null))
+    .replace(/MATOMO_ID/g, process.env.MATOMO_ID || 'null')
   
   fs.writeFileSync(
     pathToMatomoJs,