diff --git a/src/config.rs b/src/config.rs
index 24c1f535..4712f20a 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -203,7 +203,7 @@ impl Config {
         } else {
             self.rest
                 .insert(index, value)
-                .map_err(|e| ErrorKind::TomlQueryError(e))?;
+                .map_err(ErrorKind::TomlQueryError)?;
         }
 
         Ok(())