diff --git a/etherlink/kernel_evm/ethereum/src/wei.rs b/etherlink/kernel_evm/ethereum/src/wei.rs
index 27980b8b086a873734b47ee5cb2cb435349dab5c..5ea208800e2b09ec7920ce25f428ae865c4eb019 100644
--- a/etherlink/kernel_evm/ethereum/src/wei.rs
+++ b/etherlink/kernel_evm/ethereum/src/wei.rs
@@ -32,7 +32,7 @@ pub fn mutez_from_wei(wei: Wei) -> Result<u64, ErrorMutezFromWei> {
 
     if !remainder.is_zero() {
         Err(ErrorMutezFromWei::NonNullRemainder)
-    } else if !amount < U256::from(u64::max_value()) {
+    } else if amount >= U256::from(u64::max_value()) {
         Err(ErrorMutezFromWei::AmountTooLarge)
     } else {
         Ok(amount.as_u64())