GRK39D

Change-Id: I3801d5534b4f6bbdbd37cefa74f71a35ea5ffa59
diff --git a/core/build_id.mk b/core/build_id.mk
index be8d5ce..2db6e21 100644
--- a/core/build_id.mk
+++ b/core/build_id.mk
@@ -19,4 +19,4 @@
 # (like "CRB01").  It must be a single word, and is
 # capitalized by convention.
 
-export BUILD_ID=GRK39C
+export BUILD_ID=GRK39D