diff --git a/pubky/pkg/package.json b/pubky/pkg/package.json
index 34e6409..657e1d0 100644
--- a/pubky/pkg/package.json
+++ b/pubky/pkg/package.json
@@ -2,7 +2,7 @@
   "name": "@synonymdev/pubky",
   "type": "module",
   "description": "Pubky client",
-  "version": "0.4.0-rc2",
+  "version": "0.4.0-rc3",
   "license": "MIT",
   "repository": {
     "type": "git",
diff --git a/pubky/src/wasm/http.rs b/pubky/src/wasm/http.rs
index eea495d..2fe2291 100644
--- a/pubky/src/wasm/http.rs
+++ b/pubky/src/wasm/http.rs
@@ -150,8 +150,11 @@ impl Client {
                 url.set_port(Some(http_port))
                     .expect("coultdn't use the resolved endpoint's port");
             } else {
-                url.set_port(Some(e.port()))
-                    .expect("coultdn't use the resolved endpoint's port");
+                // TODO: where does port zero come from?
+                if e.port() != 0 {
+                    url.set_port(Some(e.port()))
+                        .expect("coultdn't use the resolved endpoint's port");
+                }
             }
 
             url.set_host(Some(e.domain()))