diff --git a/WHATS_NEW b/WHATS_NEW
index fd741bb6c..c7d3a2d52 100644
--- a/WHATS_NEW
+++ b/WHATS_NEW
@@ -1,3 +1,7 @@
+Version 2.02.98
+=================================
+  Use 'ignore' discards for thin metadata created with older versions.
+
 Version 2.02.97 - 7th August 2012
 =================================
   Issue error message when arguments do not match specified RAID type.
diff --git a/lib/thin/thin.c b/lib/thin/thin.c
index cfd50add0..25c1947bf 100644
--- a/lib/thin/thin.c
+++ b/lib/thin/thin.c
@@ -119,7 +119,7 @@ static int _thin_pool_text_import(struct lv_segment *seg,
 		return SEG_LOG_ERROR("Could not read discards for");
 
 	if (!discards_str)
-		seg->discards = THIN_DISCARDS_PASSDOWN;
+		seg->discards = THIN_DISCARDS_IGNORE;
 	else if (!get_pool_discards(discards_str, &seg->discards))
 		return SEG_LOG_ERROR("Discards option unsupported for");