diff --git a/embassy-stm32/build.rs b/embassy-stm32/build.rs
index 8965b312c..eb0437bc2 100644
--- a/embassy-stm32/build.rs
+++ b/embassy-stm32/build.rs
@@ -911,24 +911,6 @@ fn main() {
         (("eth", "TXD2"), quote!(crate::eth::TXD2Pin)),
         (("eth", "TXD3"), quote!(crate::eth::TXD3Pin)),
         (("eth", "TX_EN"), quote!(crate::eth::TXEnPin)),
-        (("eth", "MII_REF_CLK"), quote!(crate::eth::RefClkPin)),
-        (("eth", "MII_RX_CLK"), quote!(crate::eth::RXClkPin)),
-        (("eth", "MII_TX_CLK"), quote!(crate::eth::TXClkPin)),
-        (("eth", "MII_MDIO"), quote!(crate::eth::MDIOPin)),
-        (("eth", "MII_MDC"), quote!(crate::eth::MDCPin)),
-        (("eth", "MII_CRS_DV"), quote!(crate::eth::CRSPin)),
-        (("eth", "MII_RX_DV"), quote!(crate::eth::RXDVPin)),
-        (("eth", "MII_RXD0"), quote!(crate::eth::RXD0Pin)),
-        (("eth", "MII_RXD1"), quote!(crate::eth::RXD1Pin)),
-        (("eth", "MII_RXD2"), quote!(crate::eth::RXD2Pin)),
-        (("eth", "MII_RXD3"), quote!(crate::eth::RXD3Pin)),
-        (("eth", "MII_TXD0"), quote!(crate::eth::TXD0Pin)),
-        (("eth", "MII_TXD1"), quote!(crate::eth::TXD1Pin)),
-        (("eth", "MII_TXD2"), quote!(crate::eth::TXD2Pin)),
-        (("eth", "MII_TXD3"), quote!(crate::eth::TXD3Pin)),
-        (("eth", "MII_TX_EN"), quote!(crate::eth::TXEnPin)),
-        (("eth", "RMII_REF_CLK"), quote!(crate::eth::RefClkPin)),
-        (("eth", "RMII_CRS_DV"), quote!(crate::eth::CRSPin)),
         (("fmc", "A0"), quote!(crate::fmc::A0Pin)),
         (("fmc", "A1"), quote!(crate::fmc::A1Pin)),
         (("fmc", "A2"), quote!(crate::fmc::A2Pin)),