1 files changed, 1 insertions, 1 deletions

diff --git a/mystdlib.c b/mystdlib.c
index b53beca..56edcb9 100644
--- a/mystdlib.c
+++ b/mystdlib.c
@@ -22,7 +22,7 @@ MAP map_file( char *filename, int readonly )
     {
       fstat( map->fh, &fstatus );
       if( ( map->addr = mmap( NULL, map->size = (size_t)fstatus.st_size,
-         PROT_READ | ( readonly ? 0 : PROT_WRITE), (readonly ? 0 : MAP_SHARED), map->fh, 0) ) == MAP_FAILED )
+         PROT_READ | ( readonly ? 0 : PROT_WRITE), (readonly ? MAP_PRIVATE : MAP_SHARED), map->fh, 0) ) == MAP_FAILED )
       {
         fprintf( stderr, "Mapping file '%s' failed\n", filename );
         close( map->fh ); free( map ); map = NULL;