diff --git a/crates/cli/src/utils/abi.rs b/crates/cli/src/utils/abi.rs
index c7f4d260416d7..01c34ba6e83c0 100644
--- a/crates/cli/src/utils/abi.rs
+++ b/crates/cli/src/utils/abi.rs
@@ -46,8 +46,9 @@ pub async fn parse_function_args<P: Provider<AnyNetwork>>(
         // a regular function signature with parentheses
         get_func(sig)?
     } else {
+        info!("function signature does not contain parentheses, fetching function data from Etherscan");
         let etherscan_api_key = etherscan_api_key.ok_or_eyre(
-            "If you wish to fetch function data from Etherscan, please provide an Etherscan API key.",
+            "Function signature does not contain parentheses. If you wish to fetch function data from Etherscan, please provide an API key.",
         )?;
         let to = to.ok_or_eyre("A 'to' address must be provided to fetch function data.")?;
         get_func_etherscan(sig, to, &args, chain, etherscan_api_key).await?