diff --git a/core/src/audio_key.rs b/core/src/audio_key.rs
index 2d6a21ee..e19c5b87 100644
--- a/core/src/audio_key.rs
+++ b/core/src/audio_key.rs
@@ -32,11 +32,11 @@ impl AudioKeyManager {
                 0xd => {
                     let mut key = [0u8; 16];
                     key.copy_from_slice(data.as_ref());
-                    sender.complete(Ok(AudioKey(key)));
+                    let _ = sender.send(Ok(AudioKey(key)));
                 }
                 0xe => {
                     warn!("error audio key {:x} {:x}", data.as_ref()[0], data.as_ref()[1]);
-                    sender.complete(Err(AudioKeyError));
+                    let _ = sender.send(Err(AudioKeyError));
                 }
                 _ => (),
             }
diff --git a/core/src/mercury/mod.rs b/core/src/mercury/mod.rs
index 2bf52a11..23a3224e 100644
--- a/core/src/mercury/mod.rs
+++ b/core/src/mercury/mod.rs
@@ -199,7 +199,7 @@ impl MercuryManager {
         if response.status_code >= 400 {
             warn!("error {} for uri {}", response.status_code, &response.uri);
             if let Some(cb) = pending.callback {
-                cb.complete(Err(MercuryError));
+                let _ = cb.send(Err(MercuryError));
             }
         } else {
             if cmd == 0xb5 {
@@ -223,7 +223,7 @@ impl MercuryManager {
                     }
                 })
             } else if let Some(cb) = pending.callback {
-                cb.complete(Ok(response));
+                let _ = cb.send(Ok(response));
             }
         }
     }
diff --git a/src/player.rs b/src/player.rs
index 94df2e1c..ffffa130 100644
--- a/src/player.rs
+++ b/src/player.rs
@@ -155,7 +155,7 @@ impl PlayerState {
         match self {
             Paused { end_of_track, .. } |
             Playing { end_of_track, .. } => {
-                end_of_track.complete(())
+                let _ = end_of_track.send(());
             }
 
             Stopped => warn!("signal_end_of_track from stopped state"),
@@ -313,7 +313,7 @@ impl PlayerInternal {
                     }
 
                     None => {
-                        end_of_track.complete(());
+                        let _ = end_of_track.send(());
                         if self.state.is_playing() {
                             self.run_onstop();
                         }