dependent files that have "::" in their filename?

[Sheldon Plankton]

I have a Makefile with this entry ...

CX_FILES=\
YXEPS-0.1/CX/config/charsets.txt \
YXEPS-0.1/CX/My\:\:Module\:\:TXT.xml

YXEPS-0.1.tgz : ${CX_FILES}
        sudo tar -czvf $@ ${CX_FILES}

I think I am escaping out the ":" characters correctly but I get this error
when I run make ...

make: *** No rule to make target `YXEPS-0.1/CX/My\:\:Module\:\:TXT.xml
', needed by YXEPS-0.1.tgz

What is one suppose to do when you have files that have ":"'s in their names?

Thanks