diff --git a/linker/linker.h b/linker/linker.h
index fdd7b66..ae1ae3c 100644
--- a/linker/linker.h
+++ b/linker/linker.h
@@ -155,6 +155,12 @@
    * permitted_path from the caller's namespace.
    */
   ANDROID_NAMESPACE_TYPE_SHARED = 2,
+
+  /* This flag instructs linker to enable grey-list workaround for the namespace.
+   * See http://b/26394120 for details.
+   */
+  ANDROID_NAMESPACE_TYPE_GREYLIST_ENABLED = 0x08000000,
+
   ANDROID_NAMESPACE_TYPE_SHARED_ISOLATED = ANDROID_NAMESPACE_TYPE_SHARED |
                                            ANDROID_NAMESPACE_TYPE_ISOLATED,
 };