diff --git a/docs/en/api-reference/system/freertos_additions.rst b/docs/en/api-reference/system/freertos_additions.rst
index eca519d5fb..b667f520a8 100644
--- a/docs/en/api-reference/system/freertos_additions.rst
+++ b/docs/en/api-reference/system/freertos_additions.rst
@@ -87,9 +87,9 @@ The following example demonstrates the usage of :cpp:func:`xRingbufferSendAcquir
 
         //Retrieve space for DMA descriptor and corresponding data buffer
         //This has to be done with SendAcquire, or the address may be different when we copy
-        dma_item_t item;
+        dma_item_t *item;
         UBaseType_t res =  xRingbufferSendAcquire(buf_handle,
-                            &item, DMA_ITEM_SIZE(buffer_size), pdMS_TO_TICKS(1000));
+                            (void**) &item, DMA_ITEM_SIZE(buffer_size), pdMS_TO_TICKS(1000));
         if (res != pdTRUE) {
             printf("Failed to acquire memory for item\n");
         }
@@ -98,7 +98,7 @@ The following example demonstrates the usage of :cpp:func:`xRingbufferSendAcquir
             .length = buffer_size,
             .eof = 0,
             .owner = 1,
-            .buf = &item->buf,
+            .buf = item->buf,
         };
         //Actually send to the ring buffer for consumer to use
         res = xRingbufferSendComplete(buf_handle, &item);
diff --git a/docs/zh_CN/api-reference/system/freertos_additions.rst b/docs/zh_CN/api-reference/system/freertos_additions.rst
index 36e4800fb4..71fd14cf00 100644
--- a/docs/zh_CN/api-reference/system/freertos_additions.rst
+++ b/docs/zh_CN/api-reference/system/freertos_additions.rst
@@ -1 +1 @@
-.. include:: ../../../en/api-reference/system/freertos_additions.rst
\ No newline at end of file
+.. include:: ../../../en/api-reference/system/freertos_additions.rst