diff --git a/util.c b/util.c
index 716eed897..c9ee45213 100644
--- a/util.c
+++ b/util.c
@@ -367,6 +367,7 @@ int parse_maps(pid_t pid, struct list_head *vma_area_list, bool use_map_files)
 			if (MAJOR(st_buf.st_dev) == 0) {
 				if (!(vma_area->vma.flags & MAP_SHARED))
 					goto err_bogus_mapping;
+				vma_area->vma.flags  |= MAP_ANONYMOUS;
 				vma_area->vma.status |= VMA_ANON_SHARED;
 				vma_area->shmid = st_buf.st_ino;
 			} else {