Please note that version 2.5.1-1 should fix this issue since we updated the patch that bundles ms to ms version 0.7.2. https://tracker.debian.org/media/packages/n/node-debug/changelog-2.5.1-1 https://sources.debian.net/src/node-debug/2.5.1-1/debian/patches/00-bundle_ms.diff/#L288 Paolo