diff --git a/embassy-nrf/src/usb.rs b/embassy-nrf/src/usb.rs
index 9b6e6e83..bfd48775 100644
--- a/embassy-nrf/src/usb.rs
+++ b/embassy-nrf/src/usb.rs
@@ -142,7 +142,7 @@ impl SignalledSupply {
     }
 }
 
-impl UsbSupply for SignalledSupply {
+impl UsbSupply for &SignalledSupply {
     fn is_usb_detected(&self) -> bool {
         self.usb_detected.load(Ordering::Relaxed)
     }