diff --git a/src/partition.rs b/src/partition.rs
index 93c59b4..52421bb 100644
--- a/src/partition.rs
+++ b/src/partition.rs
@@ -143,10 +143,6 @@ where
                         if remove_miner {
                             // remove miner's state if we handle rewards separately
                             state.remove(&self.coinbase);
-                        } else {
-                            // add miner to read set, because it's in write set.
-                            // set miner's value to None to make this tx redo in next round if unconfirmed.
-                            read_set.insert(LocationAndType::Basic(self.coinbase), None);
                         }
                         // temporary commit to cache_db, to make use the remaining txs can read the updated data
                         let transition = evm.db_mut().temporary_commit(state);