problem in absolute variable location

I would appreciate your help to fix this problem:
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<main.c>

// include files
#include "main.h"

// main
int
main(void)
{ //test code for problem in h file

while (reg1) { // wait }
}

// end

<main.h>

volatile unsigned char reg1 __at 0x40004000; //see the semicolon?

// end

<build>

Build target 'Target 1'

compiling main.c...

main.h(1): error: #65: expected a ";"

Target not created

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Eric