diff --git a/.gitignore b/.gitignore
index ebded30..c00df58 100644
--- a/.gitignore
+++ b/.gitignore
@@ -21,3 +21,4 @@ tests/.tests
 python/lsst/pex/exceptions/version.py
 tests/test_Exception_1
 tests/failer.py
+python/*.dist-info/