diff --git a/all/build.gradle b/all/build.gradle
index 5a7a28832a..bf3dad5387 100644
--- a/all/build.gradle
+++ b/all/build.gradle
@@ -46,7 +46,6 @@ javadoc {
         source subproject.javadoc.source
         options.links subproject.javadoc.options.links.toArray(new String[0])
     }
-    exclude 'io/grpc/internal/**'
 }
 
 task jacocoMerge(type: JacocoMerge) {
diff --git a/core/build.gradle b/core/build.gradle
index b833db032d..28d17a7e4f 100644
--- a/core/build.gradle
+++ b/core/build.gradle
@@ -10,4 +10,8 @@ dependencies {
     signature "org.codehaus.mojo.signature:java16:+@signature"
 }
 
-javadoc.exclude 'io/grpc/internal/**'
+javadoc {
+    // We want io.grpc.Internal, but not io.grpc.Internal*
+    exclude 'io/grpc/Internal?*.java'
+    exclude 'io/grpc/internal/**'
+}
diff --git a/netty/build.gradle b/netty/build.gradle
index a06e63e1f7..954fdadb75 100644
--- a/netty/build.gradle
+++ b/netty/build.gradle
@@ -16,7 +16,10 @@ dependencies {
   it.options.compilerArgs += ["-Xep:FutureReturnValueIgnored:OFF"]
 }
 
-javadoc.options.links 'http://netty.io/4.1/api/'
+javadoc {
+    options.links 'http://netty.io/4.1/api/'
+    exclude 'io/grpc/netty/Internal*'
+}
 
 project.sourceSets {
     main {