diff --git a/fs/bcachefs/super-io.c b/fs/bcachefs/super-io.c
index e1b4e6f02ee3..61b947313c88 100644
--- a/fs/bcachefs/super-io.c
+++ b/fs/bcachefs/super-io.c
@@ -283,19 +283,19 @@ const char *bch2_sb_validate(struct bch_sb_handle *disk_sb)
 		return "Bad number of member devices";
 
 	if (!BCH_SB_META_REPLICAS_WANT(sb) ||
-	    BCH_SB_META_REPLICAS_WANT(sb) >= BCH_REPLICAS_MAX)
+	    BCH_SB_META_REPLICAS_WANT(sb) > BCH_REPLICAS_MAX)
 		return "Invalid number of metadata replicas";
 
 	if (!BCH_SB_META_REPLICAS_REQ(sb) ||
-	    BCH_SB_META_REPLICAS_REQ(sb) >= BCH_REPLICAS_MAX)
+	    BCH_SB_META_REPLICAS_REQ(sb) > BCH_REPLICAS_MAX)
 		return "Invalid number of metadata replicas";
 
 	if (!BCH_SB_DATA_REPLICAS_WANT(sb) ||
-	    BCH_SB_DATA_REPLICAS_WANT(sb) >= BCH_REPLICAS_MAX)
+	    BCH_SB_DATA_REPLICAS_WANT(sb) > BCH_REPLICAS_MAX)
 		return "Invalid number of data replicas";
 
 	if (!BCH_SB_DATA_REPLICAS_REQ(sb) ||
-	    BCH_SB_DATA_REPLICAS_REQ(sb) >= BCH_REPLICAS_MAX)
+	    BCH_SB_DATA_REPLICAS_REQ(sb) > BCH_REPLICAS_MAX)
 		return "Invalid number of data replicas";
 
 	if (BCH_SB_META_CSUM_TYPE(sb) >= BCH_CSUM_OPT_NR)