i keep getthing an error in my code and i dont know what does this error means

warning: no newline at end of file

here is my code

#include<stdio.h>

void draw_box(int, int);

int main(void)

{

draw_box(8, 35 );
return 0;

}

void draw_box(int row, int collum)

{
int col;

for(; row > 0; row--)
{
for(col = collum; col>0; col--)
printf("X");

printf("\n");
}
}