diff --git a/src/Kconfig b/src/Kconfig
index 4260585cd8..9e1a0eafc4 100644
--- a/src/Kconfig
+++ b/src/Kconfig
@@ -324,7 +324,7 @@ menu "Memory Management"
                         Speed priority mode.
                         As long as the memory block size meets the requirements, the search ends immediately.
 
-                config RT_MEMHEAP_BSET_MODE
+                config RT_MEMHEAP_BEST_MODE
                     bool "best mode"
                     help
                         Best size first.
diff --git a/src/memheap.c b/src/memheap.c
index 85f4899116..62142af34d 100644
--- a/src/memheap.c
+++ b/src/memheap.c
@@ -690,7 +690,7 @@ void rt_memheap_free(void *ptr)
     if (insert_header)
     {
         struct rt_memheap_item *n = heap->free_list->next_free;;
-#if defined(RT_MEMHEAP_BSET_MODE)
+#if defined(RT_MEMHEAP_BEST_MODE)
         rt_size_t blk_size = MEMITEM_SIZE(header_ptr);
         for (;n != heap->free_list; n = n->next_free)
         {