diff --git a/modules/core/njalla.nix b/modules/core/njalla.nix
index 4c86031..251ac9d 100644
--- a/modules/core/njalla.nix
+++ b/modules/core/njalla.nix
@@ -76,7 +76,7 @@ except Exception:
 import urllib.parse
 for raw_url in urls:
     try:
-        url = raw_url.replace("\${IP}", public_ip) if public_ip else raw_url
+        url = raw_url.replace("''${IP}", public_ip) if public_ip else raw_url
         parsed = urllib.parse.urlparse(url)
         if parsed.scheme.lower() != "https":
             continue