diff --git a/mutation_partition.cc b/mutation_partition.cc
index 467565e80e..dab01056b1 100644
--- a/mutation_partition.cc
+++ b/mutation_partition.cc
@@ -706,7 +706,7 @@ mutation_partition::query_compacted(query::result::partition_writer& pw, const s
 					|| !has_any_live_data(s, column_kind::static_column, static_row()))) {
 		pw.retract();
 	} else {
-	    pw.row_count() = row_count ? : 1;
+	    pw.row_count() += row_count ? : 1;
         std::move(rows_wr).end_rows().end_qr_partition();
 	}
 }