diff --git a/samples/grpc-server/src/test/java/org/springframework/grpc/sample/GrpcServerApplicationTests.java b/samples/grpc-server/src/test/java/org/springframework/grpc/sample/GrpcServerApplicationTests.java
index 38e62cf..471826c 100644
--- a/samples/grpc-server/src/test/java/org/springframework/grpc/sample/GrpcServerApplicationTests.java
+++ b/samples/grpc-server/src/test/java/org/springframework/grpc/sample/GrpcServerApplicationTests.java
@@ -24,7 +24,8 @@ public class GrpcServerApplicationTests {
 	private static Log log = LogFactory.getLog(GrpcServerApplicationTests.class);
 
 	public static void main(String[] args) {
-		new SpringApplicationBuilder(GrpcServerApplication.class, ExtraConfiguration.class).run(args);
+		new SpringApplicationBuilder(GrpcServerApplication.class, ExtraConfiguration.class)
+			.run("--spring.grpc.inprocess.enabled=false");
 	}
 
 	@Autowired