diff --git a/db/db_test.cc b/db/db_test.cc
index 986d5810e..119ec5bd8 100644
--- a/db/db_test.cc
+++ b/db/db_test.cc
@@ -4672,9 +4672,9 @@ TEST(DBTest, CompactionFilterContextManual) {
   ASSERT_EQ(NumTableFilesAtLevel(0), 1);
 
   // Verify total number of keys is correct after manual compaction.
-  int count = 0;
-  int total = 0;
   {
+    int count = 0;
+    int total = 0;
     Arena arena;
     ScopedArenaIterator iter(dbfull()->TEST_NewInternalIterator(&arena));
     iter->SeekToFirst();