diff --git a/deltachat-ffi/src/lib.rs b/deltachat-ffi/src/lib.rs
index f0811118f..a89764c0d 100644
--- a/deltachat-ffi/src/lib.rs
+++ b/deltachat-ffi/src/lib.rs
@@ -2225,7 +2225,7 @@ pub unsafe extern "C" fn dc_send_backup(
                 .await
                 .map(|transfer| Box::into_raw(Box::new(dc_backup_sender { transfer })))
                 .log_err(ctx, "send_backup failed")
-                .unwrap_or_else(|_| ptr::null_mut())
+                .unwrap_or(ptr::null_mut())
         })
     } else {
         eprintln!("dc_imex called without a valid directory");
@@ -2250,10 +2250,10 @@ pub unsafe extern "C" fn dc_backup_sender_qr(
     let bs = &*bs;
     let ticket = bs.transfer.ticket();
 
-    qr_code_generator::generate_backup_qr_code(&ticket)
+    qr_code_generator::generate_backup_qr_code(ticket)
         .map(|s| s.strdup())
         .log_err(ctx, "generate_backup_qr_code failed")
-        .unwrap_or_else(|_| ptr::null_mut())
+        .unwrap_or(ptr::null_mut())
 }
 
 #[no_mangle]
diff --git a/examples/repl/cmdline.rs b/examples/repl/cmdline.rs
index fdd5314ab..acb25b91a 100644
--- a/examples/repl/cmdline.rs
+++ b/examples/repl/cmdline.rs
@@ -483,7 +483,7 @@ pub async fn cmdline(context: Context, line: &str, chat_id: &mut ChatId) -> Resu
             let tdir = tempfile::TempDir::new()?;
             let dir = tdir.path();
             println!("Storing backup in: {} ", dir.display());
-            let transfer = send_backup(&context, dir.as_ref(), Some(arg1.to_string())).await?;
+            let transfer = send_backup(&context, dir, Some(arg1.to_string())).await?;
             let ticket = transfer.ticket();
             let ticket_bytes = ticket.as_bytes();
 
diff --git a/src/imex.rs b/src/imex.rs
index 835bc030a..6e4c7dedc 100644
--- a/src/imex.rs
+++ b/src/imex.rs
@@ -864,7 +864,7 @@ async fn export_backup_iroh_inner(
     dir_builder.name(
         temp_path
             .file_name()
-            .map(|s| s.to_string_lossy().to_owned())
+            .map(|s| s.to_string_lossy())
             .unwrap_or_default(),
     );