diff --git a/proxmox-http/src/client/connector.rs b/proxmox-http/src/client/connector.rs
index eac83354..abbd0f1a 100644
--- a/proxmox-http/src/client/connector.rs
+++ b/proxmox-http/src/client/connector.rs
@@ -135,7 +135,7 @@ impl hyper::service::Service<Uri> for HttpsConnector {
 
             let proxy_authority = match build_authority(&proxy.host, proxy.port) {
                 Ok(authority) => authority,
-                Err(err) => return futures::future::err(err).boxed(),
+                Err(err) => return futures::future::err(err.into()).boxed(),
             };
 
             let proxy_uri = match Uri::builder()
diff --git a/proxmox-http/src/uri.rs b/proxmox-http/src/uri.rs
index ca671612..0f05ec7e 100644
--- a/proxmox-http/src/uri.rs
+++ b/proxmox-http/src/uri.rs
@@ -1,9 +1,10 @@
-use anyhow::Error;
+//! URI Related helpers, such as `build_authority`
 
-use http::uri::Authority;
+use http::uri::{Authority, InvalidUri};
 
-// Build a http::uri::Authority ("host:port"), use '[..]' around IPv6 addresses
-pub fn build_authority(host: &str, port: u16) -> Result<Authority, Error> {
+// Build an [`Authority`](http::uri::Authority) from a combination of `host` and `port`, ensuring that
+// IPv6 addresses are enclosed in brackets.
+pub fn build_authority(host: &str, port: u16) -> Result<Authority, InvalidUri> {
     let bytes = host.as_bytes();
     let len = bytes.len();
     let authority =