comment typo

1 files changed, 1 insertions, 1 deletions

diff --git a/Git/Index.hs b/Git/Index.hs
index 1f9d1c814..7145bb943 100644
--- a/Git/Index.hs
+++ b/Git/Index.hs
@@ -45,7 +45,7 @@ indexFileLock r = indexFile r ++ ".lock"
  - Changes made to this index will influence the commit, but won't
  - affect the real index file.
  -
- - This detects when we're in this situation, using a heiristic, which
+ - This detects when we're in this situation, using a heuristic, which
  - might be broken by changes to git. Any use of this should have a test
  - case to make sure it works.
  -}