diff --git a/.gitignore b/.gitignore
index e62d491d2..851e2ddea 100644
--- a/.gitignore
+++ b/.gitignore
@@ -47,6 +47,7 @@ htmlcov/
 nosetests.xml
 coverage.xml
 coverage.html
+diff-coverage.txt
 *.cover
 *.py,cover
 .hypothesis/