diff --git a/magick/cache.c b/magick/cache.c
index eb8e30e..30ca4dc 100644
--- a/magick/cache.c
+++ b/magick/cache.c
@@ -2773,7 +2773,7 @@
   assert(cache_info->signature == MagickSignature);
   *width=2048UL/sizeof(PixelPacket);
   if (GetPixelCacheType(image) == DiskCache)
-    *width=8196UL/sizeof(PixelPacket);
+    *width=8192UL/sizeof(PixelPacket);
   *height=(*width);
 }