diff --git a/.gitignore b/.gitignore
index d4973f5f9..09f1c3a97 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,6 +4,8 @@
 *.o
 _*
 cabal-dev*
+.cabal-sandbox/
+cabal.sandbox.config
 hledger-web/static/tmp/
 hledger-web/yesod-devel/
 TAGS