1 files changed, 1 insertions, 1 deletions
diff --git a/main.c b/main.c
index 43b2ac86..7bab2768 100644
--- a/main.c
+++ b/main.c
@@ -395,7 +395,7 @@ read_whole_file(struct curparse *curp, struct buf *fb, int *with_mmap)
 		*with_mmap = 1;
 		fb->sz = (size_t)st.st_size;
 		fb->buf = mmap(NULL, fb->sz, PROT_READ, 
-				MAP_FILE, curp->fd, 0);
+				MAP_FILE|MAP_SHARED, curp->fd, 0);
 		if (fb->buf != MAP_FAILED)
 			return(1);
 	}