diff --git a/services/build.gradle b/services/build.gradle
index fdc0f35322..b6d945c7e9 100644
--- a/services/build.gradle
+++ b/services/build.gradle
@@ -40,6 +40,7 @@ configureProtoCompilation()
 tasks.named("javadoc").configure {
     exclude 'io/grpc/services/Internal*.java'
     exclude 'io/grpc/services/internal/*'
+    exclude 'io/grpc/protobuf/services/internal/*'
 }
 
 tasks.named("jacocoTestReport").configure {