diff --git a/examples/controller/sdkconfig.defaults b/examples/controller/sdkconfig.defaults
index f6d78c971..98cd8d2b6 100644
--- a/examples/controller/sdkconfig.defaults
+++ b/examples/controller/sdkconfig.defaults
@@ -1,4 +1,5 @@
-CONFIG_ESPTOOLPY_FLASHSIZE_4MB=y
+# Use 8M flash
+CONFIG_ESPTOOLPY_FLASHSIZE_8MB=y
 
 #enable BT
 CONFIG_BT_ENABLED=y
@@ -49,6 +50,3 @@ CONFIG_CHIP_SHELL_CMD_LINE_BUF_MAX_LENGTH=512
 
 # Disable WiFi network commissioning driver
 CONFIG_WIFI_NETWORK_COMMISSIONING_DRIVER=n
-
-# Use 8M flash
-CONFIG_ESPTOOLPY_FLASHSIZE_8MB=y