diff --git a/crates/ptth_server/src/file_server.rs b/crates/ptth_server/src/file_server.rs
index e9d42e2..6b98539 100644
--- a/crates/ptth_server/src/file_server.rs
+++ b/crates/ptth_server/src/file_server.rs
@@ -312,12 +312,12 @@ async fn stream_file (
 			break;
 		}
 		
-		buffer.truncate (bytes_read);
-		
 		let bytes_read_64 = u64::try_from (bytes_read).expect ("Couldn't fit usize into u64");
 		
 		let bytes_read_64 = min (bytes_left, bytes_read_64);
 		
+		buffer.truncate (bytes_read_64 as usize);
+		
 		if tx.send (Ok::<_, Infallible> (buffer)).await.is_err () {
 			warn! ("Cancelling file stream (Sent {} out of {} bytes)", bytes_sent, content_length);
 			break;