diff --git a/include/zephyr/ipc/pbuf.h b/include/zephyr/ipc/pbuf.h
index 5f953522d3bd..7e61950c808d 100644
--- a/include/zephyr/ipc/pbuf.h
+++ b/include/zephyr/ipc/pbuf.h
@@ -16,7 +16,8 @@ extern "C" {
 
 /**
  * @brief Packed buffer API
- * @ingroup kernel_apis
+ * @defgroup pbuf Packed Buffer API
+ * @ingroup ipc
  * @{
  */