diff --git a/api/envoy/config/filter/http/transformation/v2/transformation_filter.proto b/api/envoy/config/filter/http/transformation/v2/transformation_filter.proto
index 25849dc4a..fabe3d437 100644
--- a/api/envoy/config/filter/http/transformation/v2/transformation_filter.proto
+++ b/api/envoy/config/filter/http/transformation/v2/transformation_filter.proto
@@ -295,6 +295,9 @@ message TransformationTemplate {
 
     // A template that determines the metadata value.
     InjaTemplate value = 3;
+
+    // Unused to be implemented in 1.30
+    bool json_to_proto = 4;
   }
   // Use this field to set Dynamic Metadata.
   repeated DynamicMetadataValue dynamic_metadata_values = 9;
diff --git a/changelog/v1.28.2-patch3/extra-field.yaml b/changelog/v1.28.2-patch3/extra-field.yaml
new file mode 100644
index 000000000..b5cb3087f
--- /dev/null
+++ b/changelog/v1.28.2-patch3/extra-field.yaml
@@ -0,0 +1,5 @@
+changelog:
+- type: NON_USER_FACING
+  description: >-
+    People built bad things on top of this. So add useless field
+