"MOB30K"
diff --git a/core/build_id.mk b/core/build_id.mk
index 86c8d81..1591832 100644
--- a/core/build_id.mk
+++ b/core/build_id.mk
@@ -18,4 +18,4 @@
 # (like "CRB01").  It must be a single word, and is
 # capitalized by convention.
 
-export BUILD_ID=MOB30J
+export BUILD_ID=MOB30K