diff --git a/MagickCore/configure.c b/MagickCore/configure.c
index 83051b3..6049bb0 100644
--- a/MagickCore/configure.c
+++ b/MagickCore/configure.c
@@ -53,6 +53,7 @@
 #include "MagickCore/string_.h"
 #include "MagickCore/token.h"
 #include "MagickCore/utility.h"
+#include "MagickCore/utility-private.h"
 #include "MagickCore/xml-tree.h"
 
 /*