diff --git a/crates/qrcode/keyfork-qrcode/src/lib.rs b/crates/qrcode/keyfork-qrcode/src/lib.rs
index 0955be0..e1a81c7 100644
--- a/crates/qrcode/keyfork-qrcode/src/lib.rs
+++ b/crates/qrcode/keyfork-qrcode/src/lib.rs
@@ -244,22 +244,21 @@ pub fn scan_camera(timeout: Duration, index: usize) -> Result<Option<String>, QR
                     }
                     let mut queue = condvar
                         .wait_while(queue, |queue| {
-                            eprintln!("thread {i} received signal");
-                            queue.images.is_empty() || queue.shutdown
+                            queue.images.is_empty() && !queue.shutdown
                         })
                         .expect(bug::bug!(POISONED_MUTEX));
                     if let Some(image) = queue.images.pop() {
-                        eprintln!("thread {i} received image");
                         // drop the queue here since this is what's going to take time
                         drop(queue);
                         if let Some(content) = scanner.scan_image(image) {
-                            println!("scanned: {content}");
-                            tx.send(content).expect(
-                                bug::bug!("A scanned image could not be sent")
-                            );
+                            eprintln!("scanned: {content}");
+                            if tx.send(content).is_err() {
+                                break;
+                            }
                         }
                     }
                 }
+                eprintln!("shutting down thread {i}");
             });
         }
 
@@ -284,7 +283,6 @@ pub fn scan_camera(timeout: Duration, index: usize) -> Result<Option<String>, QR
                 .expect(bug::bug!(POISONED_MUTEX))
                 .images
                 .push(image);
-            eprintln!("notifying any thread");
             arced.1.notify_one();
         }