diff --git a/ethcore/src/miner/miner.rs b/ethcore/src/miner/miner.rs
index 55c05f067..04aa0daba 100644
--- a/ethcore/src/miner/miner.rs
+++ b/ethcore/src/miner/miner.rs
@@ -21,6 +21,7 @@ use util::*;
 use util::using_queue::{UsingQueue, GetAction};
 use account_provider::AccountProvider;
 use views::{BlockView, HeaderView};
+use header::Header;
 use state::{State, CleanupMode};
 use client::{MiningBlockChainClient, Executive, Executed, EnvInfo, TransactOptions, BlockID, CallAnalytics};
 use executive::contract_address;
@@ -467,7 +468,15 @@ impl Miner {
 			balance: chain.latest_balance(a),
 		};
 
+		let best_block_header: Header = ::util::rlp::decode(&chain.best_block_header());
 		transactions.into_iter()
+			.filter(|tx| match self.engine.verify_transaction_basic(tx, &best_block_header) {
+				Ok(()) => true,
+				Err(e) => {
+					debug!(target: "miner", "Rejected tx {:?} with invalid signature: {:?}", tx.hash(), e);
+					false
+				}
+			})
 			.map(|tx| transaction_queue.add(tx, &fetch_account, origin))
 			.collect()
 	}