diff --git a/src/driver/core/SideBar.ts b/src/driver/core/SideBar.ts
index 725f293..0be0ef5 100644
--- a/src/driver/core/SideBar.ts
+++ b/src/driver/core/SideBar.ts
@@ -6,6 +6,7 @@ import GitHubHelper, {
   EMPTY_PROJECT,
   MetaData,
   TreeData,
+  BLOCKED_PROJECT,
 } from 'utils/GitHubHelper'
 import configHelper from 'utils/configHelper'
 import URLHelper from 'utils/URLHelper'
@@ -142,6 +143,8 @@ const init: MethodCreator<Props, ConnectorState> = dispatch => async () => {
 const handleError: MethodCreator<Props, ConnectorState, [Error]> = dispatch => async err => {
   if (err.message === EMPTY_PROJECT) {
     dispatch.call(setError, 'This project seems to be empty.')
+  } else if (err.message === BLOCKED_PROJECT) {
+    dispatch.call(setError, 'This project is blocked.')
   } else if (
     err.message === NOT_FOUND ||
     err.message === BAD_CREDENTIALS ||
diff --git a/src/utils/GitHubHelper.ts b/src/utils/GitHubHelper.ts
index 256f14c..761226f 100644
--- a/src/utils/GitHubHelper.ts
+++ b/src/utils/GitHubHelper.ts
@@ -3,19 +3,22 @@ export const NOT_FOUND = 'Repo Not Found'
 export const BAD_CREDENTIALS = 'Bad credentials'
 export const API_RATE_LIMIT = `API rate limit`
 export const EMPTY_PROJECT = `Empty project`
+export const BLOCKED_PROJECT = `Blocked project`
 
-function apiRateLimitExceeded(content: any) {
-  // it's ok
+function apiRateLimitExceeded(content: any /* examined any */) {
   return (
     content && content['documentation_url'] === 'https://developer.github.com/v3/#rate-limiting'
   )
 }
 
-function isEmptyProject(content: any) {
-  // it's ok
+function isEmptyProject(content: any /* examined any */) {
   return content && content['message'] === 'Git Repository is empty.'
 }
 
+function isBlockedProject(content: any /* examined any */) {
+  return content && content['message'] === "Repository access blocked"
+}
+
 type Options = {
   accessToken?: string
 }
@@ -40,6 +43,7 @@ async function request(url: string, { accessToken }: Options = {}) {
       const content = await res.json()
       if (apiRateLimitExceeded(content)) throw new Error(API_RATE_LIMIT)
       if (isEmptyProject(content)) throw new Error(EMPTY_PROJECT)
+      if (isBlockedProject(content)) throw new Error(BLOCKED_PROJECT)
       // Unknown type of error, report it!
       raiseError(new Error(`Got ${res.statusText} when requesting ${url}`))
       throw new Error(content && content.message)