diff --git a/tokio-postgres/src/builder.rs b/tokio-postgres/src/builder.rs
index 18221fbd..c64ad729 100644
--- a/tokio-postgres/src/builder.rs
+++ b/tokio-postgres/src/builder.rs
@@ -67,10 +67,7 @@ impl Builder {
         #[cfg(unix)]
         {
             if host.starts_with('/') {
-                Arc::make_mut(&mut self.0)
-                    .host
-                    .push(Host::Unix(PathBuf::from(host)));
-                return self;
+                return self.host_path(host);
             }
         }