diff --git a/MagickCore/utility.c b/MagickCore/utility.c
index 7183bd7..0cfd9b2 100644
--- a/MagickCore/utility.c
+++ b/MagickCore/utility.c
@@ -50,6 +50,7 @@
 #include "MagickCore/log.h"
 #include "MagickCore/magick-private.h"
 #include "MagickCore/memory_.h"
+#include "MagickCore/nt-base-private.h"
 #include "MagickCore/option.h"
 #include "MagickCore/policy.h"
 #include "MagickCore/resource_.h"