diff --git a/magick/configure.h b/magick/configure.h
index 0be05da..058a39e 100644
--- a/magick/configure.h
+++ b/magick/configure.h
@@ -32,6 +32,7 @@
     *value;
                                                                                 
   MagickBooleanType
+    exempt,
     stealth;
                                                                                 
   struct _ConfigureInfo