diff --git a/sitecompanion/icon128.png b/sitecompanion/icon128.png
new file mode 100644
index 0000000..aba2554
Binary files /dev/null and b/sitecompanion/icon128.png differ
diff --git a/sitecompanion/manifest.json b/sitecompanion/manifest.json
index e562857..3361c12 100644
--- a/sitecompanion/manifest.json
+++ b/sitecompanion/manifest.json
@@ -22,5 +22,8 @@
   "options_ui": {
     "page": "settings.html",
     "open_in_tab": true
+  },
+  "icons": {
+    "128": "icon128.png"
   }
 }