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-rw-r--r--ethdb/memory_database.go2
1 files changed, 1 insertions, 1 deletions
diff --git a/ethdb/memory_database.go b/ethdb/memory_database.go
index 45423ed73..a729f5233 100644
--- a/ethdb/memory_database.go
+++ b/ethdb/memory_database.go
@@ -107,7 +107,7 @@ func (b *memBatch) Put(key, value []byte) error {
b.lock.Lock()
defer b.lock.Unlock()
- b.writes = append(b.writes, kv{key, common.CopyBytes(value)})
+ b.writes = append(b.writes, kv{common.CopyBytes(key), common.CopyBytes(value)})
return nil
}