diff --git a/build-chrome.js b/build-chrome.js
index 3a4a3c7..2d85911 100644
--- a/build-chrome.js
+++ b/build-chrome.js
@@ -17,7 +17,7 @@ import esbuild from "esbuild";
 let res = spawnSync("git", ["rev-list", "--count", "HEAD"]);
 let rev = +res.stdout;
 
-const domains = ["https://*.4chan.org/*", "https://*.4channel.org/*"];
+const domains = ["https://*.4chan.org/*", "https://*.4channel.org/*", "https://sys.4chan.org/*"];
 
 const manif3 = {
   manifest_version: 3,
diff --git a/chrome/manifest.json b/chrome/manifest.json
index afa786e..ff46870 100644
--- a/chrome/manifest.json
+++ b/chrome/manifest.json
@@ -26,7 +26,8 @@
     {
       "matches": [
         "https://*.4chan.org/*",
-        "https://*.4channel.org/*"
+        "https://*.4channel.org/*",
+        "https://sys.4chan.org/*"
       ],
       "css": [],
       "run_at": "document_end",