diff --git a/pingora-load-balancing/src/lib.rs b/pingora-load-balancing/src/lib.rs
index bdbaf77..6a24c22 100644
--- a/pingora-load-balancing/src/lib.rs
+++ b/pingora-load-balancing/src/lib.rs
@@ -58,11 +58,12 @@ impl Backend {
     /// Create a new [Backend] with `weight` 1. The function will try to parse
     ///  `addr` into a [std::net::SocketAddr].
     pub fn new(addr: &str) -> Result<Self> {
-        Self::new_with_weight(addr,1)
+        Self::new_with_weight(addr, 1)
     }
 
-    // Create a new [Background] with address and weight.
-    pub fn new_with_weight(addr: &str,weight: usize) -> Result<Self> {
+    /// Creates a new [Backend] with the specified `weight`. The function will try to parse
+    /// `addr` into a [std::net::SocketAddr].
+    pub fn new_with_weight(addr: &str, weight: usize) -> Result<Self> {
         let addr = addr
             .parse()
             .or_err(ErrorType::InternalError, "invalid socket addr")?;