diff --git a/configs/config-4.19.y-x86_64 b/configs/config-4.19.y-x86_64
index cb79488c7e9a9e8ab73471589ef56e484aad0bbd..960666c298d29571c914ecd21d0d10fc1bd12fee 100644
--- a/configs/config-4.19.y-x86_64
+++ b/configs/config-4.19.y-x86_64
@@ -1660,7 +1660,7 @@ CONFIG_PNP=y
 #
 CONFIG_PNPACPI=y
 CONFIG_BLK_DEV=y
-# CONFIG_BLK_DEV_NULL_BLK is not set
+CONFIG_BLK_DEV_NULL_BLK=m
 # CONFIG_BLK_DEV_PCIESSD_MTIP32XX is not set
 CONFIG_ZRAM=m
 CONFIG_ZRAM_WRITEBACK=y