diff --git a/ethcore/src/client/client.rs b/ethcore/src/client/client.rs
index d391ef92d..58dfdbb0c 100644
--- a/ethcore/src/client/client.rs
+++ b/ethcore/src/client/client.rs
@@ -848,7 +848,7 @@ impl BlockChainClient for Client {
 			difficulty: header.difficulty(),
 			last_hashes: last_hashes,
 			gas_used: U256::zero(),
-			gas_limit: header.gas_limit(),
+			gas_limit: U256::max_value(),
 		};
 		// that's just a copy of the state.
 		let mut state = self.state_at(block).ok_or(CallError::StatePruned)?;
@@ -883,7 +883,7 @@ impl BlockChainClient for Client {
 			difficulty: header.difficulty(),
 			last_hashes: last_hashes,
 			gas_used: U256::zero(),
-			gas_limit: header.gas_limit(),
+			gas_limit: U256::max_value(),
 		};
 		// that's just a copy of the state.
 		let mut original_state = self.state_at(block).ok_or(CallError::StatePruned)?;