diff --git a/src/components/completion.js b/src/components/completion.js
index 489061c..d1fdd06 100644
--- a/src/components/completion.js
+++ b/src/components/completion.js
@@ -6,7 +6,7 @@ export default class Completion {
   }
 
   update() {
-    let state = this.store.getState();
+    let state = this.store.getState().completion;
     if (JSON.stringify(this.prevState) === JSON.stringify(state)) {
       return;
     }
diff --git a/src/components/follow.js b/src/components/follow.js
index 4fe4c58..d2d3902 100644
--- a/src/components/follow.js
+++ b/src/components/follow.js
@@ -44,7 +44,7 @@ export default class FollowComponent {
 
   update() {
     let prevState = this.state;
-    this.state = this.store.getState();
+    this.state = this.store.getState().follow;
     if (!prevState.enabled && this.state.enabled) {
       this.create();
     } else if (prevState.enabled && !this.state.enabled) {
diff --git a/src/content/index.js b/src/content/index.js
index ea08982..38ad837 100644
--- a/src/content/index.js
+++ b/src/content/index.js
@@ -6,11 +6,11 @@ import * as followActions from '../actions/follow';
 import { createStore } from '../store';
 import ContentInputComponent from '../components/content-input';
 import FollowComponent from '../components/follow';
-import followReducer from '../reducers/follow';
+import reducers from '../reducers';
 import operations from '../operations';
 import messages from './messages';
 
-const store = createStore(followReducer);
+const store = createStore(reducers);
 const followComponent = new FollowComponent(window.document.body, store);
 store.subscribe(() => {
   try {
diff --git a/src/pages/console.js b/src/pages/console.js
index 4ce9e47..0e152d3 100644
--- a/src/pages/console.js
+++ b/src/pages/console.js
@@ -2,11 +2,11 @@ import './console.scss';
 import messages from '../content/messages';
 import CompletionComponent from '../components/completion';
 import ConsoleComponent from '../components/console';
-import completionReducer from '../reducers/completion';
+import reducers from '../reducers';
 import { createStore } from '../store';
 import * as completionActions from '../actions/completion';
 
-const store = createStore(completionReducer);
+const store = createStore(reducers);
 let completionComponent = null;
 let consoleComponent = null;
 let prevState = {};
@@ -15,14 +15,13 @@ window.addEventListener('load', () => {
   let wrapper = document.querySelector('#vimvixen-console-completion');
   completionComponent = new CompletionComponent(wrapper, store);
 
-  // TODO use root root store instead of store
   consoleComponent = new ConsoleComponent(document.body, store);
 });
 
 store.subscribe(() => {
   completionComponent.update();
 
-  let state = store.getState();
+  let state = store.getState().completion;
 
   if (state.groupSelection >= 0) {
     let item = state.groups[state.groupSelection].items[state.itemSelection];
diff --git a/src/reducers/completion.js b/src/reducers/completion.js
index a8a6444..878aeac 100644
--- a/src/reducers/completion.js
+++ b/src/reducers/completion.js
@@ -63,6 +63,6 @@ export default function reducer(state = defaultState, action = {}) {
     });
   }
   default:
-    return defaultState;
+    return state;
   }
 }
diff --git a/src/reducers/index.js b/src/reducers/index.js
index 9beb81c..db17edf 100644
--- a/src/reducers/index.js
+++ b/src/reducers/index.js
@@ -1,11 +1,15 @@
 import inputReducer from '../reducers/input';
 import consoleReducer from '../reducers/console';
 import settingReducer from '../reducers/setting';
+import followReducer from '../reducers/follow';
+import completionReducer from '../reducers/completion';
 
 const defaultState = {
   input: inputReducer(undefined, {}),
   console: consoleReducer(undefined, {}),
   setting: settingReducer(undefined, {}),
+  follow: followReducer(undefined, {}),
+  completion: completionReducer(undefined, {}),
 };
 
 export default function reducer(state = defaultState, action = {}) {
@@ -13,5 +17,7 @@ export default function reducer(state = defaultState, action = {}) {
     input: inputReducer(state.input, action),
     console: consoleReducer(state.console, action),
     setting: settingReducer(state.setting, action),
+    follow: followReducer(state.follow, action),
+    completion: completionReducer(state.completion, action),
   });
 }