diff --git a/Makefile b/Makefile
index 8e575b7..171f2af 100644
--- a/Makefile
+++ b/Makefile
@@ -6,11 +6,11 @@ list: list.cpp
 
 .PHONY: memcheck_list
 memcheck_list: list
-	valgrind --leak-check=full ./list;
+	valgrind --show-leak-kinds=all --leak-check=full ./list;
 
 btree: btree.cpp
 	$(CC) $(CFLAGS) $^ -o $@
 
 .PHONY: memcheck_btree
 memcheck_btree: btree
-	valgrind --leak-check=full ./btree;
+	valgrind --show-leak-kinds=all --leak-check=full ./btree;