diff --git a/decrypt-rs/src/main.rs b/decrypt-rs/src/main.rs
index bcb8827..6aac17b 100755
--- a/decrypt-rs/src/main.rs
+++ b/decrypt-rs/src/main.rs
@@ -15,7 +15,17 @@ use rust_util::{failure_and_exit, information, opt_result, success, warning, XRe
 
 // see https://git.hatter.ink/hatter/crypto/src/branch/master/src/main/java/me/hatter/tools/crypto/stream/DecryptTool.java
 fn main() -> XResult<()> {
-    let args: Vec<String> = std::env::args().skip(1).collect();
+    let mut rm_enc_file: bool = false;
+    let args: Vec<String> = std::env::args()
+        .skip(1)
+        .filter(|arg| {
+            if arg == "-R" || arg == "--rm-enc-file" {
+                rm_enc_file = true;
+                return false;
+            }
+            true
+        })
+        .collect();
     if args.len() != 3 {
         failure_and_exit!("crypt.rs <key-hex> <file-in> <file-out>");
     }
@@ -70,6 +80,12 @@ fn main() -> XResult<()> {
     opt_result!(fs::write(&file_out, decrypted), "Write file out: {}, failed: {}", file_out);
 
     success!("Write file out succeed!");
+    if rm_enc_file {
+        information!("Remove file: {}", file_in);
+        if let Err(e) = fs::remove_file(file_in) {
+            warning!("Remove file: {} failed: {}", file_in, e);
+        }
+    }
     Ok(())
 }