diff --git a/src/common/config_opts.h b/src/common/config_opts.h
index 19bccb2e28e..ba0bd84b3cf 100644
--- a/src/common/config_opts.h
+++ b/src/common/config_opts.h
@@ -389,7 +389,7 @@ OPTION(osd_crush_chooseleaf_type, OPT_INT, 1) // 1 = host
 OPTION(osd_min_rep, OPT_INT, 1)
 OPTION(osd_max_rep, OPT_INT, 10)
 OPTION(osd_pool_default_crush_rule, OPT_INT, 0)
-OPTION(osd_pool_default_size, OPT_INT, 2)
+OPTION(osd_pool_default_size, OPT_INT, 3)
 OPTION(osd_pool_default_min_size, OPT_INT, 0)  // 0 means no specific default; ceph will use size-size/2
 OPTION(osd_pool_default_pg_num, OPT_INT, 8) // number of PGs for new pools. Configure in global or mon section of ceph.conf
 OPTION(osd_pool_default_pgp_num, OPT_INT, 8) // number of PGs for placement purposes. Should be equal to pg_num