diff --git a/cadence/scripts/bridge/calculate_bridge_fee.cdc b/cadence/scripts/bridge/calculate_bridge_fee.cdc
index 4dd69553..0d3940c9 100644
--- a/cadence/scripts/bridge/calculate_bridge_fee.cdc
+++ b/cadence/scripts/bridge/calculate_bridge_fee.cdc
@@ -7,6 +7,6 @@ import "FlowEVMBridgeUtils"
 /// @return The calculated fee to be paid in FlowToken
 ///
 access(all)
-fun main(bytes used: UFix64): UFix64 {
+fun main(bytes used: UInt64): UFix64 {
     return FlowEVMBridgeUtils.calculateBridgeFee(bytes: used)
 }