diff --git a/pkg/store/postings.go b/pkg/store/postings.go
index 066f52116c2..28fbf0cf01b 100644
--- a/pkg/store/postings.go
+++ b/pkg/store/postings.go
@@ -83,6 +83,7 @@ func (r *postingsReaderBuilder) Next() bool {
 
 	_, err := r.r.Discard(int(from - r.lastOffset))
 	if err != nil {
+		r.e = err
 		return false
 	}
 	r.lastOffset += from - r.lastOffset