diff --git a/src/Interpreters/Aggregator.cpp b/src/Interpreters/Aggregator.cpp
index f0e64b5cbcfa..e4856c33988c 100644
--- a/src/Interpreters/Aggregator.cpp
+++ b/src/Interpreters/Aggregator.cpp
@@ -1797,8 +1797,8 @@ void Aggregator::writeToTemporaryFile(AggregatedDataVariants & data_variants, si
         rows,
         ReadableSize(uncompressed_size),
         ReadableSize(compressed_size),
-        static_cast<double>(uncompressed_size) / rows,
-        static_cast<double>(compressed_size) / rows,
+        rows ? static_cast<double>(uncompressed_size) / rows : 0.0,
+        rows ? static_cast<double>(compressed_size) / rows : 0.0,
         static_cast<double>(uncompressed_size) / compressed_size,
         static_cast<double>(rows) / elapsed_seconds,
         ReadableSize(static_cast<double>(uncompressed_size) / elapsed_seconds),
diff --git a/tests/queries/0_stateless/00089_group_by_arrays_of_fixed.sql b/tests/queries/0_stateless/00089_group_by_arrays_of_fixed.sql
index 60ec1cb3396a..a068671b999d 100644
--- a/tests/queries/0_stateless/00089_group_by_arrays_of_fixed.sql
+++ b/tests/queries/0_stateless/00089_group_by_arrays_of_fixed.sql
@@ -1 +1 @@
-SELECT arr, count() AS c FROM (SELECT arrayMap(x -> x % 2, groupArray(number)) AS arr FROM (SELECT number FROM system.numbers LIMIT 10000) GROUP BY number % ((number * 0xABCDEF0123456789 % 1234) + 1)) GROUP BY arr ORDER BY c DESC, arr ASC;
+SELECT arr, count() AS c FROM (SELECT arrayMap(x -> x % 2, arraySort(groupArray(number))) AS arr FROM (SELECT number FROM system.numbers LIMIT 10000) GROUP BY number % ((number * 0xABCDEF0123456789 % 1234) + 1)) GROUP BY arr ORDER BY c DESC, arr ASC;
\ No newline at end of file