diff --git a/src/image.cpp b/src/image.cpp
index ea78911b..0fe268d8 100644
--- a/src/image.cpp
+++ b/src/image.cpp
@@ -221,6 +221,8 @@ namespace Exiv2 {
     bool Image::is8ByteType(uint16_t type)
     {
         return isRationalType(type)
+             || isLongLongType(type)
+             || type == Exiv2::tiffIfd8
              || type == Exiv2::tiffDouble
             ;
     }