diff --git a/canary/README.md b/canary/README.md
index 1aee0df87cc..f6e0902fcdd 100644
--- a/canary/README.md
+++ b/canary/README.md
@@ -25,6 +25,9 @@ In the `docker/` directory, run:
 ```
 docker-compose -f docker-compose-canary.yml up
 ```
+
+This will start the canary worker and also the cron canary.
+
 You can modify [the canary worker config](../docker/config/canary/development.yaml) to run against a prod server cluster:
 * Use a different mode to start canary worker only for testing 
 * Update the config to use Thrift/gRPC for communication 
@@ -38,21 +41,21 @@ In the project root, build cadence canary binary:
  make cadence-canary
  ```
 
-Then start canary worker:
+Then start canary worker & cron:
  ```
  ./cadence-canary start
  ```
 This is essentially the same as 
 ```
- ./cadence-canary start -mode worker
+ ./cadence-canary start -mode all
  ```
 
 By default, it will load [the configuration in `config/canary/development.yaml`](../config/canary/development.yaml). 
 Run `./cadence-canary -h` for details to understand the start options of how to change the loading directory if needed. 
 
-This will only start the workers. To start both workers and cron starter:
+To start the worker only for manual testing certain cases:
  ```
-  ./cadence-canary start -mode all
+  ./cadence-canary start -mode worker
   ```
 
 ### 3. Monitoring
diff --git a/cmd/canary/main.go b/cmd/canary/main.go
index 5c1507628bf..b7b49eeadff 100644
--- a/cmd/canary/main.go
+++ b/cmd/canary/main.go
@@ -125,7 +125,7 @@ func buildCLI() *cli.App {
 			Flags: []cli.Flag{
 				cli.StringFlag{
 					Name:   "mode, m",
-					Value:  canary.ModeWorker,
+					Value:  canary.ModeAll,
 					Usage:  fmt.Sprintf("%v, %v or %v", canary.ModeWorker, canary.ModeCronCanary, canary.ModeAll),
 					EnvVar: canary.EnvKeyMode,
 				},