diff --git a/manifest.json b/manifest.json
index a0dffd4..5d3e0bc 100644
--- a/manifest.json
+++ b/manifest.json
@@ -6,10 +6,6 @@
   "permissions": ["storage"],
   "action": {
     "default_popup": "popup.html",
-    "default_icon": {
-      "16": "icons/icon16.png",
-      "48": "icons/icon48.png",
-      "128": "icons/icon128.png"
     }
   },
   "content_security_policy": {