diff --git a/test/has_virtual_destructor_test.cpp b/test/has_virtual_destructor_test.cpp
old mode 100755
new mode 100644
index fae6e74..ceb86ea
--- a/test/has_virtual_destructor_test.cpp
+++ b/test/has_virtual_destructor_test.cpp
@@ -14,6 +14,7 @@
 
 #include <iostream>
 #include <stdexcept>
+#include <new>
 
 class polymorphic_no_virtual_destructor
 {