AP_INIT_TAKE1 apache module question

Hello, I would appreciate any help you can give me.

I am working on an apache (2.0) filter module. I am setting up my
config file to be able to read in a string using AP_INIT_TAKE1 like so:

//////////////////////////////////////////////////////////////////////
MyModuleEnable on

MyModuleDebugFilename debug_filename_mymodule
//////////////////////////////////////////////////////////////////////

I know my filter is reading this value because when I comment out
"MyModuleDebugFilename" and debug, my module is enabled. However, when
I uncomment "MyModuleDebugFilename", I get an error that looks like
this:

//////////////////////////////////////////////////////////////////////
Syntax error on line 6 of /etc/httpd/conf.d/mymodule.conf:
debug_filename_mymodule

Program exited with code 01.
//////////////////////////////////////////////////////////////////////

I have my macro setup as follows:
//////////////////////////////////////////////////////////////////////
AP_INIT_TAKE1( szDebugFilename, SetMyModuleDebugFilename, NULL,
RSRC_CONF, "Debug filename for my module" ),
{ NULL }

static const char* SetMyModuleDebugFilename( cmd_parms *cmd, void
*dummy, const char* arg ) {
MyFilterConfig *pConfig = ap_get_module_config(
cmd->server->module_config, &my_module );

pConfig->debugFilename = apr_pstrdup( cmd->pool, arg );
}
//////////////////////////////////////////////////////////////////////

Anyone have any ideas?

Thanks in advance!