diff --git a/src/eth/mod.rs b/src/eth/mod.rs
index d606a0f3..08db5007 100644
--- a/src/eth/mod.rs
+++ b/src/eth/mod.rs
@@ -305,7 +305,6 @@ impl<RX, TX> Eth<RX, TX> {
                 // Remove 4-byte Frame CheckSum
                 .fcs_remove(true)
                 // One of the slower speeds
-                // TODO: calculate properly
                 .mdc_clk_div((mdc_clk_div >> 4).min(0b111) as u8)
         );