diff --git a/board/qemu/or1k/linux-4.9.config b/board/qemu/or1k/linux-4.9.config
index 5ba03c379e..0a817b1e7f 100644
--- a/board/qemu/or1k/linux-4.9.config
+++ b/board/qemu/or1k/linux-4.9.config
@@ -14,6 +14,7 @@ CONFIG_IP_MULTICAST=y
 # CONFIG_WIRELESS is not set
 CONFIG_DEVTMPFS=y
 CONFIG_DEVTMPFS_MOUNT=y
+CONFIG_TMPFS=y
 CONFIG_NETDEVICES=y
 CONFIG_ETHOC=y
 # CONFIG_WLAN is not set