diff --git a/embassy-stm32/src/i2c/v1.rs b/embassy-stm32/src/i2c/v1.rs
index cf6011c2..72cc46c0 100644
--- a/embassy-stm32/src/i2c/v1.rs
+++ b/embassy-stm32/src/i2c/v1.rs
@@ -301,7 +301,7 @@ mod eh1 {
         }
     }
 
-    impl<'d, T: Instance, TXDMA: TxDma<T>, RXDMA: RxDma<T>> embedded_hal_1::i2c::ErrorType for I2c<'d, T, TXDMA, RXDMA> {
+    impl<'d, T: Instance> embedded_hal_1::i2c::ErrorType for I2c<'d, T> {
         type Error = Error;
     }