diff --git a/api/test-current.txt b/api/test-current.txt
index 9760cce13b2b5..fc5f0534e1afc 100644
--- a/api/test-current.txt
+++ b/api/test-current.txt
@@ -1694,6 +1694,7 @@ package android.os {
   }
 
   public static class Build.VERSION {
+    field public static final String[] ACTIVE_CODENAMES;
     field public static final int FIRST_SDK_INT;
     field public static final int RESOURCES_SDK_INT;
   }
diff --git a/core/java/android/os/Build.java b/core/java/android/os/Build.java
index 94c8b9116dd6e..b437083fceaa5 100755
--- a/core/java/android/os/Build.java
+++ b/core/java/android/os/Build.java
@@ -322,6 +322,7 @@ public class Build {
         /**
          * @hide
          */
+        @TestApi
         @UnsupportedAppUsage
         public static final String[] ACTIVE_CODENAMES = "REL".equals(ALL_CODENAMES[0])
                 ? new String[0] : ALL_CODENAMES;