diff --git a/zero_bin/rpc/src/lib.rs b/zero_bin/rpc/src/lib.rs
index 9a09ead63..42a9f243c 100644
--- a/zero_bin/rpc/src/lib.rs
+++ b/zero_bin/rpc/src/lib.rs
@@ -244,6 +244,7 @@ where
                         .context("target block is missing field `base_fee_per_gas`")?
                         .into()
                 } else {
+                    // Forces the EIP-1559 baseFee to 0 (needed for 0 price calls)
                     0.into()
                 },
                 block_gas_used: target_block.header.gas_used.into(),