diff --git a/protobuf-api/src/main/java/com/google/protobuf/ExtensionRegistry.java b/protobuf-api/src/main/java/com/google/protobuf/ExtensionRegistry.java
index 39babd3..665eee4 100644
--- a/protobuf-api/src/main/java/com/google/protobuf/ExtensionRegistry.java
+++ b/protobuf-api/src/main/java/com/google/protobuf/ExtensionRegistry.java
@@ -200,10 +200,11 @@ public void add(final Extension<?, ?> extension) {
     add(newExtensionInfo(extension), extension.getExtensionType());
   }
 
-  /** Add an extension from a generated file to the registry. */
-  public void add(final GeneratedMessage.GeneratedExtension<?, ?> extension) {
-    add((Extension<?, ?>) extension);
-  }
+  //This method should be deprecated and then removed.
+//  /** Add an extension from a generated file to the registry. */
+//  public void add(final GeneratedMessage.GeneratedExtension<?, ?> extension) {
+//    add((Extension<?, ?>) extension);
+//  }
 
   static ExtensionInfo newExtensionInfo(final Extension<?, ?> extension) {
     if (extension.getDescriptor().getJavaType() == FieldDescriptor.JavaType.MESSAGE) {