diff --git a/fs_mgr/fs_mgr.c b/fs_mgr/fs_mgr.c
index 6d9d20c55..2ba8017c7 100644
--- a/fs_mgr/fs_mgr.c
+++ b/fs_mgr/fs_mgr.c
@@ -821,7 +821,7 @@ int fs_mgr_get_crypt_info(struct fstab *fstab, char *key_loc, char *real_blk_dev
 /* Add an entry to the fstab, and return 0 on success or -1 on error */
 int fs_mgr_add_entry(struct fstab *fstab,
                      const char *mount_point, const char *fs_type,
-                     const char *blk_device, long long length)
+                     const char *blk_device, long long length  __attribute__(unused))
 {
     struct fstab_rec *new_fstab_recs;
     int n = fstab->num_entries;