diff --git a/package_control/library.py b/package_control/library.py
index 8cb8b022..3ec458d1 100644
--- a/package_control/library.py
+++ b/package_control/library.py
@@ -18,6 +18,7 @@
 DEPENDENCY_NAME_MAP = {
     "bs4": "beautifulsoup4",
     "dateutil": "python-dateutil",
+    "pymdownx": "pymdown-extensions",
     "python-jinja2": "Jinja2",
     "python-markdown": "Markdown",
     "python-pywin32": "pywin32",