diff --git a/flash/emerald/flash_emerald_factory.sh b/flash/emerald/flash_emerald_factory.sh
index e050d86025c44d14caf61b50f6204176cfa996d5..afd11d6fbc9480d63a5c2198e1dd1f6fa78dd121 100644
--- a/flash/emerald/flash_emerald_factory.sh
+++ b/flash/emerald/flash_emerald_factory.sh
@@ -14,6 +14,7 @@ FORMAT_IMGS="md_udc"
 
 # Target flash process behavior
 CLEAN_FLASH=true
+VIRTUAL_AB=true
 
 source factory.common