diff --git a/src/content/actions/operation.js b/src/content/actions/operation.js
index 89d7fec..94aa356 100644
--- a/src/content/actions/operation.js
+++ b/src/content/actions/operation.js
@@ -6,6 +6,7 @@ import * as focuses from 'content/focuses';
 import * as urls from 'content/urls';
 import * as consoleFrames from 'content/console-frames';
 import * as addonActions from './addon';
+import * as markActions from './mark';
 import * as properties from 'shared/settings/properties';
 
 // eslint-disable-next-line complexity, max-lines-per-function
@@ -57,6 +58,10 @@ const exec = (operation, repeat, settings, addonEnabled) => {
       background: operation.background,
     }), '*');
     break;
+  case operations.MARK_SET_PREFIX:
+    return markActions.startSet();
+  case operations.MARK_JUMP_PREFIX:
+    return markActions.startJump();
   case operations.NAVIGATE_HISTORY_PREV:
     navigates.historyPrev(window);
     break;
diff --git a/src/content/reducers/mark.js b/src/content/reducers/mark.js
index b6a071f..700c03f 100644
--- a/src/content/reducers/mark.js
+++ b/src/content/reducers/mark.js
@@ -1,19 +1,19 @@
 import actions from 'content/actions';
 
 const defaultState = {
-  set: false,
-  jump: false,
+  setMode: false,
+  jumpMode: false,
   marks: {},
 };
 
 export default function reducer(state = defaultState, action = {}) {
   switch (action.type) {
   case actions.MARK_START_SET:
-    return { ...state, set: true };
+    return { ...state, setMode: true };
   case actions.MARK_START_JUMP:
-    return { ...state, jump: true };
+    return { ...state, jumpMode: true };
   case actions.MARK_CANCEL:
-    return { ...state, set: false, jump: false };
+    return { ...state, setMode: false, jumpMode: false };
   case actions.MARK_SET_LOCAL: {
     let marks = { ...state.marks };
     marks[action.key] = { y: action.y };
diff --git a/test/content/reducers/mark.test.js b/test/content/reducers/mark.test.js
index 39c04cd..6358bf1 100644
--- a/test/content/reducers/mark.test.js
+++ b/test/content/reducers/mark.test.js
@@ -4,30 +4,30 @@ import reducer from 'content/reducers/mark';
 describe("mark reducer", () => {
   it('return the initial state', () => {
     let state = reducer(undefined, {});
-    expect(state.set).to.be.false;
-    expect(state.jump).to.be.false;
+    expect(state.setMode).to.be.false;
+    expect(state.jumpMode).to.be.false;
     expect(state.marks).to.be.empty;
   });
 
   it('starts set mode', () => {
     let action = { type: actions.MARK_START_SET };
     let state = reducer(undefined, action);
-    expect(state.set).to.be.true;
+    expect(state.setMode).to.be.true;
   });
 
   it('starts jump mode', () => {
     let action = { type: actions.MARK_START_JUMP };
     let state = reducer(undefined, action);
-    expect(state.jump).to.be.true;
+    expect(state.jumpMode).to.be.true;
   });
 
   it('cancels set and jump mode', () => {
     let action = { type: actions.MARK_CANCEL };
-    let state = reducer({ set: true }, action);
-    expect(state.set).to.be.false;
+    let state = reducer({ setMode: true }, action);
+    expect(state.setMode).to.be.false;
 
-    state = reducer({ jump: true }, action);
-    expect(state.jump).to.be.false;
+    state = reducer({ jumpMode: true }, action);
+    expect(state.jumpMode).to.be.false;
   });
 
   it('stores local mark', () => {