diff --git a/list/list_expand.c b/list/list_expand.c
index 84b8157..e0cf001 100644
--- a/list/list_expand.c
+++ b/list/list_expand.c
@@ -355,7 +355,7 @@ unsigned long long calListMemory(List * p_list){
     unsigned long long nodes_size = 0LL;
     unsigned long long list_size = sizeof(p_list);
     while(p_node != NULL){
-        nodes_size += sizeof(p_node) + sizeof(*p_node->value);
+        nodes_size += sizeof(p_node);
         p_node = p_node->next;
     }
     return  list_size + nodes_size;
diff --git a/tree/tree_expand.c b/tree/tree_expand.c
index 48e891a..e188663 100644
--- a/tree/tree_expand.c
+++ b/tree/tree_expand.c
@@ -222,6 +222,6 @@ unsigned long long calTreeMemory(Tree *p_tree){
 }
 
 int _doCalTreeMemory(TNode *p_tnode, unsigned long long height){
-    tnodes_size += sizeof(p_tnode) + sizeof(*p_tnode->value);
+    tnodes_size += sizeof(p_tnode);
     return 0;
 }