diff --git a/preserves.md b/preserves.md
index 348084b..42d32dd 100644
--- a/preserves.md
+++ b/preserves.md
@@ -319,7 +319,7 @@ as follows:
                                83 A3 00 EA
                                84 A3 00 97 89
         8B A4 "Thumbnail" 00
-          C3 AA
+          C7 AA
             88 A4 "Height" 00  82 A3 7D
             85 A4 "Url" 00     A8 A4 "http://www.example.com/image/481989943" 00
             87 A4 "Width" 00   82 A3 64