diff --git a/embassy-rp/src/i2c.rs b/embassy-rp/src/i2c.rs
index d1ec77d33..9596d661d 100644
--- a/embassy-rp/src/i2c.rs
+++ b/embassy-rp/src/i2c.rs
@@ -52,9 +52,9 @@ impl Default for Config {
 const FIFO_SIZE: u8 = 16;
 
 pub struct I2c<'d, T: Instance, M: Mode> {
-    tx_dma: Option<PeripheralRef<'d, AnyChannel>>,
-    rx_dma: Option<PeripheralRef<'d, AnyChannel>>,
-    dma_buf: [u16; 256],
+    _tx_dma: Option<PeripheralRef<'d, AnyChannel>>,
+    _rx_dma: Option<PeripheralRef<'d, AnyChannel>>,
+    _dma_buf: [u16; 256],
     phantom: PhantomData<(&'d mut T, M)>,
 }
 
@@ -75,8 +75,8 @@ impl<'d, T: Instance, M: Mode> I2c<'d, T, M> {
         _peri: impl Peripheral<P = T> + 'd,
         scl: PeripheralRef<'d, AnyPin>,
         sda: PeripheralRef<'d, AnyPin>,
-        tx_dma: Option<PeripheralRef<'d, AnyChannel>>,
-        rx_dma: Option<PeripheralRef<'d, AnyChannel>>,
+        _tx_dma: Option<PeripheralRef<'d, AnyChannel>>,
+        _rx_dma: Option<PeripheralRef<'d, AnyChannel>>,
         config: Config,
     ) -> Self {
         into_ref!(_peri);
@@ -173,9 +173,9 @@ impl<'d, T: Instance, M: Mode> I2c<'d, T, M> {
         }
 
         Self {
-            tx_dma,
-            rx_dma,
-            dma_buf: [0; 256],
+            _tx_dma,
+            _rx_dma,
+            _dma_buf: [0; 256],
             phantom: PhantomData,
         }
     }