diff --git a/src/config.rs b/src/config.rs
index d471c27..78b7efb 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -67,10 +67,7 @@ pub struct Config {
 
 fn permissions(value: &str) -> Result<u32, std::num::ParseIntError> {
     if value.len() != 4 {
-        todo!(
-            "Expected four octal digits as the Unix value {}!",
-            value.len()
-        )
+        todo!("Expected four octal digits as the Unix value!")
     }
     u32::from_str_radix(value, 8)
 }