diff --git a/google-api-go-generator/gen.go b/google-api-go-generator/gen.go
index 2e337c9e1d8..cf537f51dde 100644
--- a/google-api-go-generator/gen.go
+++ b/google-api-go-generator/gen.go
@@ -2001,7 +2001,7 @@ func (meth *Method) generateCode() {
 			"which errors are considered retryable. By default, exponetial backoff will be" +
 			"applied using gax defaults, and the following errors are retried:" +
 			"\n\n" +
-			"- HTTP responses with codes 429, 502, 503, and 504." +
+			"- HTTP responses with codes 408, 429, 502, 503, and 504." +
 			"\n\n" +
 			"- Transient network errors such as connection reset and io.ErrUnexpectedEOF." +
 			"\n\n" +
diff --git a/internal/gensupport/retry.go b/internal/gensupport/retry.go
index 4a4861b1b1a..cea725a3b16 100644
--- a/internal/gensupport/retry.go
+++ b/internal/gensupport/retry.go
@@ -36,6 +36,10 @@ const (
 	// should be retried.
 	// https://cloud.google.com/storage/docs/json_api/v1/status-codes#standardcodes
 	statusTooManyRequests = 429
+
+	// statusRequestTimeout is returned by the storage API if the
+	// upload connection was broken. The request should be retried.
+	statusRequestTimeout = 408
 )
 
 // shouldRetry indicates whether an error is retryable for the purposes of this
@@ -46,7 +50,7 @@ func shouldRetry(status int, err error) bool {
 	if 500 <= status && status <= 599 {
 		return true
 	}
-	if status == statusTooManyRequests {
+	if status == statusTooManyRequests || status == statusRequestTimeout {
 		return true
 	}
 	if err == io.ErrUnexpectedEOF {
diff --git a/storage/v1/storage-gen.go b/storage/v1/storage-gen.go
index 2ac105884c6..752b7a9e1e9 100644
--- a/storage/v1/storage-gen.go
+++ b/storage/v1/storage-gen.go
@@ -10276,7 +10276,7 @@ func (c *ObjectsInsertCall) ProgressUpdater(pu googleapi.ProgressUpdater) *Objec
 // By default, exponetial backoff will beapplied using gax defaults, and
 // the following errors are retried:
 //
-// - HTTP responses with codes 429, 502, 503, and 504.
+// - HTTP responses with codes 408, 429, 502, 503, and 504.
 //
 // - Transient network errors such as connection reset and
 // io.ErrUnexpectedEOF.