diff --git a/ipc/shm.c b/ipc/shm.c
index 8247c49..34af1fe 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -491,10 +491,14 @@
 
 	sprintf (name, "SYSV%08x", key);
 	if (shmflg & SHM_HUGETLB) {
+		struct hstate *hs = hstate_sizelog((shmflg >> SHM_HUGE_SHIFT)
+						& SHM_HUGE_MASK);
+		size_t hugesize = ALIGN(size, huge_page_size(hs));
+
 		/* hugetlb_file_setup applies strict accounting */
 		if (shmflg & SHM_NORESERVE)
 			acctflag = VM_NORESERVE;
-		file = hugetlb_file_setup(name, 0, size, acctflag,
+		file = hugetlb_file_setup(name, hugesize, acctflag,
 				  &shp->mlock_user, HUGETLB_SHMFS_INODE,
 				(shmflg >> SHM_HUGE_SHIFT) & SHM_HUGE_MASK);
 	} else {