diff --git a/README.md b/README.md
index d837ff42a..fdef09727 100644
--- a/README.md
+++ b/README.md
@@ -622,6 +622,7 @@ A curated list of awesome Python frameworks, libraries and software. Inspired by
 * [pysonar2](https://github.com/yinwang0/pysonar2) - A type inferencer and indexer for Python.
 * [Flake8](https://pypi.python.org/pypi/flake8) - The modular source code checker: pep8, pyflakes and co.
 * [Pylint](http://www.pylint.org/) - A source code analyzer.
+* [pycallgraph](https://github.com/gak/pycallgraph) - Creates call graph visualizations for Python applications.
 
 ## Debugging Tools