diff --git a/MagickCore/cache-private.h b/MagickCore/cache-private.h
index 3b80ee6..31b0317 100644
--- a/MagickCore/cache-private.h
+++ b/MagickCore/cache-private.h
@@ -117,7 +117,7 @@
     *pixels;
 
   MagickBooleanType
-    is_authentic_pixels;
+    authentic_cache;
 
   void
     *metacontent;