diff --git a/dialoptions.go b/dialoptions.go
index 75d01ba77..1c28ee711 100644
--- a/dialoptions.go
+++ b/dialoptions.go
@@ -528,9 +528,6 @@ func WithDefaultServiceConfig(s string) DialOption {
 // service config enables them.  This does not impact transparent retries, which
 // will happen automatically if no data is written to the wire or if the RPC is
 // unprocessed by the remote server.
-//
-// Retry support is currently enabled by default, but may be disabled by
-// setting the environment variable "GRPC_GO_RETRY" to "off".
 func WithDisableRetry() DialOption {
 	return newFuncDialOption(func(o *dialOptions) {
 		o.disableRetry = true
diff --git a/examples/features/retry/README.md b/examples/features/retry/README.md
index 826cca7f4..e39a1c717 100644
--- a/examples/features/retry/README.md
+++ b/examples/features/retry/README.md
@@ -18,11 +18,10 @@ First start the server:
 go run server/main.go
 ```
 
-Then run the client.  Note that when running the client, `GRPC_GO_RETRY=on` must be set in
-your environment:
+Then run the client:
 
 ```bash
-GRPC_GO_RETRY=on go run client/main.go
+go run client/main.go
 ```
 
 ## Usage