diff --git a/src/objective-c/examples/Sample/SampleTests/RemoteProtoTests.m b/src/objective-c/examples/Sample/SampleTests/RemoteProtoTests.m
index f7a7aaec3ee995fcfa51240c8d2cde7c40ff00cd..1443099e99f4dda95a505cf65e7b865077b85ed2 100644
--- a/src/objective-c/examples/Sample/SampleTests/RemoteProtoTests.m
+++ b/src/objective-c/examples/Sample/SampleTests/RemoteProtoTests.m
@@ -91,7 +91,7 @@
     [expectation fulfill];
   }];
 
-  [self waitForExpectationsWithTimeout:2. handler:nil];
+  [self waitForExpectationsWithTimeout:4. handler:nil];
 }
 
 - (void)testClientStreamingRPC {