diff --git a/src/installation-handler.js b/src/installation-handler.js
index 0e2c556..3614942 100644
--- a/src/installation-handler.js
+++ b/src/installation-handler.js
@@ -15,7 +15,7 @@ export async function installationHandler({ previousVersion, reason }) {
   const { version } = chrome.runtime.getManifest()
 
   if (reason === 'install') {
-    await sendTrackEvent({ name: 'installed', params: { version } })
+    await sendTrackEvent({ name: 'custom-installed', params: { version } })
       .then(saveLastInstalledVersion)
       .then(() => console.debug(`lastInstalledVersion is set: ${version}`))
   } else if (reason === 'update') {
@@ -24,11 +24,11 @@ export async function installationHandler({ previousVersion, reason }) {
       // if already installed, just update the version
       if (lastInstalledVersion) {
         console.debug(`lastInstalledVersion is ${lastInstalledVersion}`)
-        sendTrackEvent({ name: 'updated', params: { version, previousVersion } })
+        sendTrackEvent({ name: 'custom-updated', params: { version, previousVersion } })
         return
       }
 
-      sendTrackEvent({ name: 'installed', params: { version } })
+      sendTrackEvent({ name: 'custom-installed', params: { version } })
         .then(saveLastInstalledVersion)
     })
   }
diff --git a/test/installation-hander.test.js b/test/installation-hander.test.js
index 0ac4662..25a6893 100644
--- a/test/installation-hander.test.js
+++ b/test/installation-hander.test.js
@@ -27,7 +27,7 @@ describe('installationHandler', () => {
     it('should send installed event to google analytics', async () => {
       await installationHandler({ reason: 'install' })
 
-      expect(sendTrackEvent).toHaveBeenCalledWith({ name: 'installed', params: { version: '4.4.4' } })
+      expect(sendTrackEvent).toHaveBeenCalledWith({ name: 'custom-installed', params: { version: '4.4.4' } })
       expect(chrome.storage.local.set).toHaveBeenCalledWith({ lastInstalledVersion: '4.4.4' })
     })
   })
@@ -37,7 +37,7 @@ describe('installationHandler', () => {
       chrome.storage.local.get.mockReturnValue(Promise.resolve({ lastInstalledVersion: '3.3.3' }))
       await installationHandler({ reason: 'update', previousVersion: '4.4.3' })
 
-      expect(sendTrackEvent).toHaveBeenCalledWith({ name: 'updated', params: { version: '4.4.4', previousVersion: '4.4.3' } })
+      expect(sendTrackEvent).toHaveBeenCalledWith({ name: 'custom-updated', params: { version: '4.4.4', previousVersion: '4.4.3' } })
       expect(chrome.storage.local.set).not.toHaveBeenCalled()
     })
 
@@ -45,7 +45,7 @@ describe('installationHandler', () => {
       chrome.storage.local.get.mockReturnValue(Promise.resolve({ lastInstalledVersion: null }))
       await installationHandler({ reason: 'update', previousVersion: '4.4.3' })
 
-      expect(sendTrackEvent).toHaveBeenCalledWith({ name: 'installed', params: { version: '4.4.4' } })
+      expect(sendTrackEvent).toHaveBeenCalledWith({ name: 'custom-installed', params: { version: '4.4.4' } })
     })
   })
 })