diff --git a/src/Transport/GrpcFallbackTransport.php b/src/Transport/GrpcFallbackTransport.php
index 68d7f1195..7b2e417be 100644
--- a/src/Transport/GrpcFallbackTransport.php
+++ b/src/Transport/GrpcFallbackTransport.php
@@ -179,6 +179,10 @@ private function getCallOptions(array $options)
             $callOptions['timeout'] = $options['timeoutMillis'] / 1000;
         }
 
+        if (isset($options['retryAttempt'])) {
+            $callOptions['retryAttempt'] = $options['retryAttempt'];
+        }
+
         if (isset($options['requestId'])) {
             $callOptions['requestId'] = $options['requestId'];
         }