diff --git a/src/cmd_decrypt.rs b/src/cmd_decrypt.rs
index c461e54..617711a 100644
--- a/src/cmd_decrypt.rs
+++ b/src/cmd_decrypt.rs
@@ -15,8 +15,7 @@ use yubikey::piv::{AlgorithmId, decrypt_data, RetiredSlotId, SlotId};
 use yubikey::YubiKey;
 use zeroize::Zeroize;
 
-use crate::{file, util};
-use crate::card::get_card;
+use crate::{card, file, util};
 use crate::compress::GzStreamDecoder;
 use crate::crypto_aes::aes_gcm_decrypt;
 use crate::spec::{TinyEncryptEnvelop, TinyEncryptEnvelopType, TinyEncryptMeta};
@@ -195,7 +194,7 @@ fn try_decrypt_key_ecdh(envelop: &TinyEncryptEnvelop, pin: &Option<String>, slot
 }
 
 fn try_decrypt_key_pgp(envelop: &TinyEncryptEnvelop, pin: &Option<String>) -> XResult<Vec<u8>> {
-    let card = match get_card() {
+    let card = match card::get_card() {
         Err(e) => {
             failure!("Get PGP card failed: {}", e);
             return simple_error!("Get card failed: {}", e);
diff --git a/src/cmd_info.rs b/src/cmd_info.rs
index ee5cffa..620e8ee 100644
--- a/src/cmd_info.rs
+++ b/src/cmd_info.rs
@@ -53,14 +53,18 @@ pub fn info(cmd_info: CmdInfo) -> XResult<()> {
                        format_human2(Duration::from_millis(now_millis - meta.created))
     ));
 
-    meta.envelops.as_ref().map(|envelops| envelops.iter().enumerate().for_each(|(i, envelop)| {
-        infos.push(format!("{}: {}{}{}",
-                           header(&format!("Envelop #{}", i + 1)),
-                           envelop.r#type.get_upper_name(),
-                           iff!(envelop.kid.is_empty(), "".into(), format!(", Kid: {}", envelop.kid)),
-                           iff!(envelop.desc.is_none(), "".into(), format!(", Desc: {}", envelop.desc.as_ref().unwrap()))
-        ));
-    }));
+    meta.envelops.as_ref().map(|envelops|
+        envelops.iter().enumerate().for_each(|(i, envelop)| {
+            let kid = iff!(envelop.kid.is_empty(), "".into(), format!(", Kid: {}", envelop.kid));
+            let desc = iff!(envelop.desc.is_none(), "".into(), format!(", Desc: {}", envelop.desc.as_ref().unwrap()));
+            infos.push(format!("{}: {}{}{}",
+                               header(&format!("Envelop #{}", i + 1)),
+                               envelop.r#type.get_upper_name(),
+                               kid,
+                               desc
+            ));
+        })
+    );
     meta.pgp_fingerprint.map(|fingerprint| {
         infos.push(format!("{}: {}", header("PGP fingerprint"), fingerprint));
     });
diff --git a/src/main.rs b/src/main.rs
index 05d7f04..90e89ba 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,7 +1,7 @@
 extern crate core;
 
 use clap::{Parser, Subcommand};
-use rust_util::{debugging, XResult};
+use rust_util::XResult;
 
 use crate::cmd_decrypt::CmdDecrypt;
 use crate::cmd_encrypt::CmdEncrypt;
@@ -45,17 +45,8 @@ enum Commands {
 fn main() -> XResult<()> {
     let args = Cli::parse();
     match args.command {
-        Commands::Encrypt(cmd_encrypt) => {
-            debugging!("Encrypt: {:?}", cmd_encrypt);
-            cmd_encrypt::encrypt(cmd_encrypt)
-        }
-        Commands::Decrypt(cmd_decrypt) => {
-            debugging!("Decrypt: {:?}", cmd_decrypt);
-            cmd_decrypt::decrypt(cmd_decrypt)
-        }
-        Commands::Info(cmd_info) => {
-            debugging!("Info: {:?}", cmd_info);
-            cmd_info::info(cmd_info)
-        }
+        Commands::Encrypt(cmd_encrypt) => cmd_encrypt::encrypt(cmd_encrypt),
+        Commands::Decrypt(cmd_decrypt) => cmd_decrypt::decrypt(cmd_decrypt),
+        Commands::Info(cmd_info) => cmd_info::info(cmd_info),
     }
 }
\ No newline at end of file