diff --git a/docs/en/api-reference/protocols/esp_http_server.rst b/docs/en/api-reference/protocols/esp_http_server.rst
index 50cc2278fe..86c773f9fd 100644
--- a/docs/en/api-reference/protocols/esp_http_server.rst
+++ b/docs/en/api-reference/protocols/esp_http_server.rst
@@ -35,7 +35,7 @@ Application Example
              * as well be any binary data (needs type casting).
              * In case of string data, null termination will be absent, and
              * content length would give length of string */
-            char[100] content;
+            char content[100];
 
             /* Truncate if content length larger than the buffer */
             size_t recv_size = MIN(req->content_len, sizeof(content));
diff --git a/docs/zh_CN/api-reference/protocols/esp_http_server.rst b/docs/zh_CN/api-reference/protocols/esp_http_server.rst
index 7092c91790..5b1287cbaf 100644
--- a/docs/zh_CN/api-reference/protocols/esp_http_server.rst
+++ b/docs/zh_CN/api-reference/protocols/esp_http_server.rst
@@ -33,7 +33,7 @@ HTTP Server 组件提供了在 ESP32 上运行轻量级 Web 服务器的功能
             /* 定义 HTTP POST 请求数据的目标缓存区
              * httpd_req_recv() 只接收 char* 数据，但也可以是任意二进制数据（需要类型转换）
              * 对于字符串数据，null 终止符会被省略，content_len 会给出字符串的长度 */
-            char[100] content;
+            char content[100];
 
             /* 如果内容长度大于缓冲区则截断 */
             size_t recv_size = MIN(req->content_len, sizeof(content));