What steps will reproduce the problem? 1. module:provides("net", { ... }); 2. <module.name>_ports = { } 3. multiplex_ports = { 1234 } 4. Query portmanager for ports relating to the module What is the expected output? Somehow it should get the multiplex port What do you see instead? Can't get port What version of the product are you using? All versions since portmanager, ie 0.9.0 Please provide any additional information below. Affected modules include: mod_proxy65: See #1240 mod_http - the module:http_url() API (can be worked around with http_external_url)