diff --git a/compiler/src/java_plugin/cpp/java_generator.cpp b/compiler/src/java_plugin/cpp/java_generator.cpp
index 8be1575..53041b5 100644
--- a/compiler/src/java_plugin/cpp/java_generator.cpp
+++ b/compiler/src/java_plugin/cpp/java_generator.cpp
@@ -501,6 +501,7 @@
   p->Indent();
   p->Print(
       *vars,
+      "@$Override$\n"
       "@java.lang.SuppressWarnings(\"unchecked\")\n"
       "public void invoke(Req request, $StreamObserver$<Resp> responseObserver) {\n"
       "  switch (methodId) {\n");
@@ -535,6 +536,7 @@
 
   p->Print(
       *vars,
+      "@$Override$\n"
       "@java.lang.SuppressWarnings(\"unchecked\")\n"
       "public $StreamObserver$<Req> invoke(\n"
       "    $StreamObserver$<Resp> responseObserver) {\n"
diff --git a/compiler/src/test/golden/TestService.java.txt b/compiler/src/test/golden/TestService.java.txt
index 3dbaa26..e025d21 100644
--- a/compiler/src/test/golden/TestService.java.txt
+++ b/compiler/src/test/golden/TestService.java.txt
@@ -243,6 +243,7 @@
       this.methodId = methodId;
     }
 
+    @java.lang.Override
     @java.lang.SuppressWarnings("unchecked")
     public void invoke(Req request, io.grpc.stub.StreamObserver<Resp> responseObserver) {
       switch (methodId) {
@@ -259,6 +260,7 @@
       }
     }
 
+    @java.lang.Override
     @java.lang.SuppressWarnings("unchecked")
     public io.grpc.stub.StreamObserver<Req> invoke(
         io.grpc.stub.StreamObserver<Resp> responseObserver) {
diff --git a/compiler/src/test/golden/TestServiceNano.java.txt b/compiler/src/test/golden/TestServiceNano.java.txt
index b310d92..5c37877 100644
--- a/compiler/src/test/golden/TestServiceNano.java.txt
+++ b/compiler/src/test/golden/TestServiceNano.java.txt
@@ -321,6 +321,7 @@
       this.methodId = methodId;
     }
 
+    @java.lang.Override
     @java.lang.SuppressWarnings("unchecked")
     public void invoke(Req request, io.grpc.stub.StreamObserver<Resp> responseObserver) {
       switch (methodId) {
@@ -337,6 +338,7 @@
       }
     }
 
+    @java.lang.Override
     @java.lang.SuppressWarnings("unchecked")
     public io.grpc.stub.StreamObserver<Req> invoke(
         io.grpc.stub.StreamObserver<Resp> responseObserver) {