diff --git a/src/Nethermind/Nethermind.Evm/Precompiles/Bls/MapFp2ToG2Precompile.cs b/src/Nethermind/Nethermind.Evm/Precompiles/Bls/MapFp2ToG2Precompile.cs
index 28a365e9b1c..24c7848653c 100644
--- a/src/Nethermind/Nethermind.Evm/Precompiles/Bls/MapFp2ToG2Precompile.cs
+++ b/src/Nethermind/Nethermind.Evm/Precompiles/Bls/MapFp2ToG2Precompile.cs
@@ -23,7 +23,7 @@ private MapFp2ToG2Precompile()
 
     public static Address Address { get; } = Address.FromNumber(0x13);
 
-    public long BaseGasCost(IReleaseSpec releaseSpec) => 17000;
+    public long BaseGasCost(IReleaseSpec releaseSpec) => 17000L;
 
     public long DataGasCost(ReadOnlyMemory<byte> inputData, IReleaseSpec releaseSpec) => 0L;