diff --git a/src/run_modes.rs b/src/run_modes.rs
index ec956ce..3c41a41 100644
--- a/src/run_modes.rs
+++ b/src/run_modes.rs
@@ -53,7 +53,7 @@ fn prepare_command(conf: Config) -> AppResult<String> {
         .replace("{n}", format!("{}", index).as_str())
         .replace("{n+}", format!("{}", index + 1).as_str())
         .replace("{zn}", add_leading_zero(index).as_str())
-        .replace("{zn+}", add_leading_zero(index).as_str()))
+        .replace("{zn+}", add_leading_zero(index + 1).as_str()))
 }
 
 pub fn play() -> AppResult<()> {