diff --git a/docs/en/api-guides/dfu.rst b/docs/en/api-guides/dfu.rst
index e599352c90a..d96c62819be 100644
--- a/docs/en/api-guides/dfu.rst
+++ b/docs/en/api-guides/dfu.rst
@@ -29,7 +29,7 @@ Device Firmware Upgrade (DFU) is a mechanism for upgrading the firmware of {IDF_
 USB Connection
 --------------
 
-.. only:: esp32p4
+.. only:: esp32p4 or esp32s31
 
     {IDF_TARGET_NAME} routes the USB D+ and D- signals to their dedicated pins. For USB device functionality, these pins must be connected to the USB bus (e.g., via a Micro-B port, USB-C port, or directly to standard-A plug).
 
diff --git a/docs/zh_CN/api-guides/dfu.rst b/docs/zh_CN/api-guides/dfu.rst
index a45d5c093a9..09718e91b22 100644
--- a/docs/zh_CN/api-guides/dfu.rst
+++ b/docs/zh_CN/api-guides/dfu.rst
@@ -29,7 +29,7 @@
 USB 连接
 --------------
 
-.. only:: esp32p4
+.. only:: esp32p4 or esp32s31
 
     {IDF_TARGET_NAME} 将 USB D+ 和 D- 信号连接到其专用引脚。为了实现 USB 设备功能，这些引脚必须连接到 USB 总线，如，通过 Micro-B 接口、USB-C 接口进行连接，或直接连接到标准 A 型插头。