How to decode a packet withouth the link layer in wireshark?


Hi all,
I am interesting to view in wireshark some special packets I capture.
This packets do not contain ethernet header (L2 - link layer) .
When trying to open them with wireshark the application suppose the packet contain the ethernet header and do not decode the packet properly.
Attached is a printscreen of the application as can be seem the IP header (which start with 0x45) is decoded as a part of the ethernet header.
Anyone knows how to start decoding the packet straight from a L3 header excluding the L2 header ?
Thanks a lot