diff --git a/br-ext-chip-sigmastar/board/infinity6c/kernel/infinity6c-ssc027a.config b/br-ext-chip-sigmastar/board/infinity6c/kernel/infinity6c-ssc027a.config
index 124a1abf..7edbecf3 100644
--- a/br-ext-chip-sigmastar/board/infinity6c/kernel/infinity6c-ssc027a.config
+++ b/br-ext-chip-sigmastar/board/infinity6c/kernel/infinity6c-ssc027a.config
@@ -1134,7 +1134,7 @@ CONFIG_NET_CORE=y
 # CONFIG_GTP is not set
 # CONFIG_MACSEC is not set
 # CONFIG_NETCONSOLE is not set
-CONFIG_TUN=m
+CONFIG_TUN=y
 # CONFIG_TUN_VNET_CROSS_LE is not set
 # CONFIG_VETH is not set
 # CONFIG_NLMON is not set
diff --git a/br-ext-chip-sigmastar/board/infinity6c/kernel/infinity6c-ssc027d.config b/br-ext-chip-sigmastar/board/infinity6c/kernel/infinity6c-ssc027d.config
index 2dfa7ef8..a48fad9f 100644
--- a/br-ext-chip-sigmastar/board/infinity6c/kernel/infinity6c-ssc027d.config
+++ b/br-ext-chip-sigmastar/board/infinity6c/kernel/infinity6c-ssc027d.config
@@ -1134,7 +1134,7 @@ CONFIG_NET_CORE=y
 # CONFIG_GTP is not set
 # CONFIG_MACSEC is not set
 # CONFIG_NETCONSOLE is not set
-CONFIG_TUN=m
+CONFIG_TUN=y
 # CONFIG_TUN_VNET_CROSS_LE is not set
 # CONFIG_VETH is not set
 # CONFIG_NLMON is not set
diff --git a/br-ext-chip-sigmastar/board/infinity6e/kernel/infinity6e-ssc012b.config b/br-ext-chip-sigmastar/board/infinity6e/kernel/infinity6e-ssc012b.config
index fa389aa4..b0a0bca0 100644
--- a/br-ext-chip-sigmastar/board/infinity6e/kernel/infinity6e-ssc012b.config
+++ b/br-ext-chip-sigmastar/board/infinity6e/kernel/infinity6e-ssc012b.config
@@ -1063,7 +1063,7 @@ CONFIG_NET_CORE=y
 # CONFIG_NETCONSOLE is not set
 # CONFIG_NETPOLL is not set
 # CONFIG_NET_POLL_CONTROLLER is not set
-CONFIG_TUN=m
+CONFIG_TUN=y
 # CONFIG_TUN_VNET_CROSS_LE is not set
 # CONFIG_VETH is not set
 # CONFIG_NLMON is not set