[Geany] Template for C++ headers

[jay]

hi guys! i've recently switched to geany from cdt (eclipse plugin for
c/c++). when you create a new header file in cdt it's default content is
like below:

#ifndef SOMEHEADER_H_
#define SOMEHEADER_H_

#endif /*SOMEHEADER_H_*/

where SOMEHEADER is the name of the file. Can you tell me how can i make
it in geany? I have created a template and put it into
~/.geany/templates but geany doesn't seem to see it even after restart.
my template has this content:

#ifndef {filename}
#define {filename}

#endif /*{filename}*/

but filename is not what i need. I got stuck at this point. Need your
help.