diff --git a/src/lib.rs b/src/lib.rs
index 397f208..7a5df7b 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -97,7 +97,7 @@ pub fn private_key_ecdh(
 fn run_command_stdout(cmd: Command) -> XResult<String> {
     let output = run_command(cmd)?;
     let stdout_text = opt_result!(String::from_utf8(output.stdout), "Parse stdout failed:{}");
-    Ok(stdout_text)
+    Ok(stdout_text.trim().to_string())
 }
 
 fn run_command(mut cmd: Command) -> XResult<Output> {