diff --git a/lib/storage/index_db.go b/lib/storage/index_db.go
index 04cf922a7..236ec8f71 100644
--- a/lib/storage/index_db.go
+++ b/lib/storage/index_db.go
@@ -2483,7 +2483,7 @@ func (is *indexSearch) getMetricIDsForTagFilterSlow(tf *tagFilter, filter *uint6
 		}
 		// Slow path: need tf.matchSuffix call.
 		ok, err := tf.matchSuffix(suffix)
-		loopsCount += reMatchCost
+		loopsCount += tf.matchCost
 		if err != nil {
 			return loopsCount, fmt.Errorf("error when matching %s against suffix %q: %w", tf, suffix, err)
 		}