diff --git a/embassy-stm32/src/usart/mod.rs b/embassy-stm32/src/usart/mod.rs
index aaf7b41e6..333e01e36 100644
--- a/embassy-stm32/src/usart/mod.rs
+++ b/embassy-stm32/src/usart/mod.rs
@@ -1689,7 +1689,6 @@ impl embedded_hal_nb::serial::Error for Error {
             Self::Overrun => embedded_hal_nb::serial::ErrorKind::Overrun,
             Self::Parity => embedded_hal_nb::serial::ErrorKind::Parity,
             Self::BufferTooLong => embedded_hal_nb::serial::ErrorKind::Other,
-            Self::DmaUnsynced => embedded_hal_nb::serial::ErrorKind::Other,
         }
     }
 }