diff --git a/src/main.rs b/src/main.rs
index 7881d23..68fc52d 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -169,7 +169,7 @@ struct Cli {
     certificate_path_option: Option<String>,
 
     /// The downloading file path .
-    #[arg(global = true, short = 'O', long, default_missing_value = "none")]
+    #[arg(global = true, short = 'o', long, default_missing_value = "none")]
     file_path_option: Option<String>,
 
     /// Skip certificate validation.