...

diff --git a/coders/mpc.c b/coders/mpc.c
index 3a85d5597fee827c9740a7737b74f5c2550e5d4f..57c8db7b00a97c9e55a9bd5dda3d8a84b320d036 100644 (file)
--- a/coders/mpc.c
+++ b/coders/mpc.c
@@ -1467,8 +1467,14 @@ static MagickBooleanType WriteMPCImage(const ImageInfo *image_info,Image *image,
     /*
       Initialize persistent pixel cache.
     */
-    status=PersistPixelCache(image,cache_filename,MagickFalse,&offset,
-      exception);
+    {
+      Image *clone_image=CloneImage(image,0,0,MagickTrue,exception);
+      if (clone_image == (Image *) NULL)
+        ThrowWriterException(CacheError,"UnableToPersistPixelCache");
+      status=PersistPixelCache(image,cache_filename,MagickFalse,&offset,
+        exception);
+      clone_image=DestroyImage(clone_image);
+    }
     if (status == MagickFalse)
       ThrowWriterException(CacheError,"UnableToPersistPixelCache");
     if (GetNextImageInList(image) == (Image *) NULL)