diff --git a/src/desfire/desfire.rs b/src/desfire/desfire.rs
index e396cdd..499615c 100644
--- a/src/desfire/desfire.rs
+++ b/src/desfire/desfire.rs
@@ -685,7 +685,7 @@ impl Desfire {
             let response = self.card.as_ref().unwrap().transmit(cmd_read_data).unwrap();
             // println!("RESPONSE: {}", response);
 
-            response.check().map_err(|e| e)?;
+            response.check()?;
             // // println!("RESPONSE_DATA: {:x?}, WITHOUT_CMAC: {:x?}", response.body.as_ref().unwrap(), response.body.as_ref().unwrap()[..bytes_toread].to_vec());
 
             read_buffer.append(&mut response.body.unwrap()[..bytes_toread].to_vec());