diff --git a/src/actions/command.js b/src/actions/command.js
new file mode 100644
index 0000000..982255c
--- /dev/null
+++ b/src/actions/command.js
@@ -0,0 +1,35 @@
+import actions from '../actions';
+
+const normalizeUrl = (string) => {
+  try {
+    return new URL(string).href
+  } catch (e) {
+    return 'http://' + string;
+  }
+}
+
+export function exec(line) {
+  let name = line.split(' ')[0];
+  let remaining = line.replace(name + ' ', '');
+
+  switch (name) {
+  case 'open':
+    // TODO use search engined and pass keywords to them
+    return {
+      type: actions.COMMAND_OPEN_URL,
+      url: normalizeUrl(remaining)
+    };
+  case 'tabopen':
+    return {
+      type: actions.COMMAND_TABOPEN_URL,
+      url: remaining
+    };
+  case 'b':
+  case 'buffer':
+    return {
+      type: actions.COMMAND_BUFFER,
+      keywords: remaining
+    };
+  }
+  throw new Error(name + ' command is not defined');
+}
diff --git a/src/actions/index.js b/src/actions/index.js
index 135dd4a..63d5f6f 100644
--- a/src/actions/index.js
+++ b/src/actions/index.js
@@ -33,4 +33,8 @@ export default {
   // User input
   INPUT_KEY_PRESS: 'input.key,press',
   INPUT_CLEAR_KEYS: 'input.clear.keys',
+
+  COMMAND_OPEN_URL: 'command.open.url',
+  COMMAND_TABOPEN_URL: 'command.tabopen.url',
+  COMMAND_BUFFER: 'command.buffer',
 };
diff --git a/src/background/index.js b/src/background/index.js
index 4d75b33..e72cab0 100644
--- a/src/background/index.js
+++ b/src/background/index.js
@@ -1,51 +1,11 @@
-import * as tabs from './tabs';
 import * as keys from './keys';
 import * as inputActions from '../actions/input';
 import backgroundReducers from '../reducers/background';
+import commandReducer from '../reducers/command';
 import inputReducers from '../reducers/input';
 
 let inputState = inputReducers(undefined, {});
 
-const normalizeUrl = (string) => {
-  try {
-    return new URL(string).href
-  } catch (e) {
-    return 'http://' + string;
-  }
-}
-
-const cmdBuffer = (sender, arg) => {
-  if (isNaN(arg)) {
-    return tabs.selectByKeyword(sender.tab, arg);
-  } else {
-    let index = parseInt(arg, 10) - 1;
-    return tabs.selectAt(index);
-  }
-}
-
-const cmdEnterHandle = (request, sender) => {
-  let words = request.text.split(' ').filter((s) => s.length > 0);
-  switch (words[0]) {
-  case 'open':
-    return browser.tabs.update(sender.tab.id, { url: normalizeUrl(words[1]) });
-  case 'tabopen':
-    return browser.tabs.create({ url: normalizeUrl(words[1]) });
-  case 'b':
-  case 'buffer':
-    return cmdBuffer(sender, words[1]);
-  }
-  throw new Error(words[0] + ' command is not defined');
-};
-
-browser.runtime.onMessage.addListener((request, sender) => {
-  switch (request.type) {
-  case 'event.cmd.enter':
-    return cmdEnterHandle(request, sender);
-  default:
-    return browser.tabs.sendMessage(sender.tab.id, request);
-  }
-});
-
 const keyQueueChanged = (sender, prevState, state) => {
   if (state.keys.length === 0) {
     return Promise.resolve();
@@ -75,7 +35,11 @@ const handleMessage = (action, sender) => {
     inputState = nextInputState;
     return keyQueueChanged(sender, prevState, inputState);
   }
-  return backgroundReducers(undefined, action, sender);
+  return backgroundReducers(undefined, action, sender).then(() => {
+    return commandReducer(undefined, action, sender).then(() => {
+      return browser.tabs.sendMessage(sender.tab.id, action);
+    });
+  });
 };
 
 browser.runtime.onMessage.addListener(handleMessage);
diff --git a/src/console/console.js b/src/console/console.js
index f83f79c..25ab36d 100644
--- a/src/console/console.js
+++ b/src/console/console.js
@@ -1,6 +1,7 @@
 import './console.scss';
 import * as backgroundActions from '../actions/background';
 import * as consoleActions from '../actions/console';
+import * as commandActions from '../actions/command';
 import Completion from './completion';
 import consoleReducer from '../reducers/console';
 
@@ -10,13 +11,6 @@ var completion = null;
 var completionOrigin = "";
 let state = consoleReducer(undefined, {});
 
-const keydownMessage = (input) => {
-  return {
-    type: 'vimvixen.command.enter',
-    value: input.value
-  };
-};
-
 const handleBlur = () => {
   return browser.runtime.sendMessage(consoleActions.hide());
 };
@@ -58,7 +52,7 @@ const handleKeydown = (e) => {
   case KeyboardEvent.DOM_VK_ESCAPE:
     return input.blur();
   case KeyboardEvent.DOM_VK_RETURN:
-    return browser.runtime.sendMessage(keydownMessage(e.target));
+    return browser.runtime.sendMessage(commandActions.exec(e.target.value));
   case KeyboardEvent.DOM_VK_TAB:
     if (e.shiftKey) {
       completePrev();
diff --git a/src/reducers/command.js b/src/reducers/command.js
new file mode 100644
index 0000000..7e03593
--- /dev/null
+++ b/src/reducers/command.js
@@ -0,0 +1,24 @@
+import * as tabs from '../background/tabs';
+import actions from '../actions';
+
+const cmdBuffer = (sender, arg) => {
+  if (isNaN(arg)) {
+    return tabs.selectByKeyword(sender.tab, arg);
+  } else {
+    let index = parseInt(arg, 10) - 1;
+    return tabs.selectAt(index);
+  }
+}
+
+export default function reducer(state, action, sender) {
+  switch (action.type) {
+  case actions.COMMAND_OPEN_URL:
+    return browser.tabs.update(sender.tab.id, { url: action.url });
+  case actions.COMMAND_TABOPEN_URL:
+    return browser.tabs.create({ url: action.url });
+  case actions.COMMAND_BUFFER:
+    return cmdBuffer(sender, action.keywords);
+  default:
+    return Promise.resolve();
+  }
+}