diff --git a/apk_frauder/src/lib.rs b/apk_frauder/src/lib.rs
index 5769b2f..a9ae355 100644
--- a/apk_frauder/src/lib.rs
+++ b/apk_frauder/src/lib.rs
@@ -242,6 +242,7 @@ pub fn replace_dex(
         .arg(keystore.as_ref().as_os_str())
         .arg("--out")
         .arg(dst.as_ref().as_os_str())
+        .arg("--in")
         .arg(aligned_path.as_os_str());
     let cmd = if let Some(pwd) = keypassword {
         cmd.arg("--ks-pass").arg(format!("pass:${pwd}"))