diff --git a/armsrc/appmain.c b/armsrc/appmain.c
index 79b21c5bf..3c471191f 100644
--- a/armsrc/appmain.c
+++ b/armsrc/appmain.c
@@ -2516,6 +2516,9 @@ static void PacketReceived(PacketCommandNG *packet) {
                 Flash_WriteEnable();
                 Flash_Erase4k(3, 0xC);
             } else if (payload->startidx ==  DEFAULT_MF_KEYS_OFFSET) {
+                Flash_CheckBusy(BUSY_TIMEOUT);
+                Flash_WriteEnable();
+                Flash_Erase4k(3, 0x8);
                 Flash_CheckBusy(BUSY_TIMEOUT);
                 Flash_WriteEnable();
                 Flash_Erase4k(3, 0x9);