diff --git a/backends/bmv2/jsonconverter.cpp b/backends/bmv2/jsonconverter.cpp
index 2356c90164..cd3c22577a 100644
--- a/backends/bmv2/jsonconverter.cpp
+++ b/backends/bmv2/jsonconverter.cpp
@@ -1761,6 +1761,7 @@ void JsonConverter::addLocals() {
     json->emplace("id", nextId("headers"));
     json->emplace("header_type", scalarsName);
     json->emplace("metadata", true);
+    json->emplace("pi_omit", true);  // Don't expose scalars in PI.
     headerInstances->append(json);
 }