diff --git a/build.sbt b/build.sbt
index 67150e6..836761f 100644
--- a/build.sbt
+++ b/build.sbt
@@ -48,7 +48,11 @@ lazy val core = projectMatrix
     Compile / PB.targets := Seq(
       PB.gens.java -> (Compile / sourceManaged).value / "scalapb",
       scalapb.gen() -> (Compile / sourceManaged).value / "scalapb"
-    )
+    ),
+    Compile / packageBin / packageOptions += {
+        Package.ManifestAttributes("ScalaPB-Options-Proto" ->
+        "scalapb/validate-options.proto")
+    }
   )
   .jvmPlatform(scalaVersions = Seq(Scala212, Scala213))
 
diff --git a/core/src/main/protobuf/scalapb/validate-options.proto b/core/src/main/protobuf/scalapb/validate-options.proto
new file mode 100644
index 0000000..392b8fa
--- /dev/null
+++ b/core/src/main/protobuf/scalapb/validate-options.proto
@@ -0,0 +1,11 @@
+syntax = "proto3";
+package scalapb.validate;
+
+import "scalapb/scalapb.proto";
+option (scalapb.options) = {
+  scope: PACKAGE
+  flat_package: false
+  lenses: true
+  java_conversions: true
+  preserve_unknown_fields: true
+};