diff --git a/background-script.js b/background-script.js
index 1b400e6..16b15ef 100644
--- a/background-script.js
+++ b/background-script.js
@@ -888,10 +888,6 @@ browser.runtime.onMessage.addListener((req, sender, sendResponse) =>
     {
         sendResponse(lookup_indirect(req.text, req.time, req.divexisted));
     }
-    else if (req.type == "toggle")
-    {
-        toggle_enabled();
-    }
     else if (req.type == "fixicon")
     {
         fixicon();
@@ -905,3 +901,11 @@ browser.runtime.onMessage.addListener((req, sender, sendResponse) =>
         return;
     }
 });
+
+browser.contextMenus.create({
+    id: "nazeka-toggle",
+    title: "Toggle Nazeka",
+    contexts: ["page", "selection"],
+    documentUrlPatterns: ["moz-extension://*/reader.html"],
+    onclick: toggle_enabled
+});
diff --git a/reader.js b/reader.js
index a6ec336..bf3ec0e 100644
--- a/reader.js
+++ b/reader.js
@@ -2,19 +2,6 @@
 
 'use strict';
 
-function toggle()
-{
-    browser.runtime.sendMessage({type:"toggle"});
-}
-
-browser.contextMenus.create({
-    id: "nazeka-toggle",
-    title: "Toggle Nazeka",
-    contexts: ["page", "selection"],
-    documentUrlPatterns: ["moz-extension://*/reader.html"],
-    onclick: toggle
-});
-
 function might_have_japanese(text)
 {
     for(let char of text)