diff --git a/src/Alignment.hs b/src/Alignment.hs
index 49fefc24a..01a4b3a5b 100644
--- a/src/Alignment.hs
+++ b/src/Alignment.hs
@@ -39,7 +39,7 @@ numberedRows = countUp (both 1 1)
         nextLineNumbers from row = modifyJoin (fromThese identity identity) (succ <$ row) <*> from
 
 -- | Determine whether a line contains any patches.
-hasChanges :: SplitDiff leaf Info -> Bool
+hasChanges :: SplitDiff leaf annotation -> Bool
 hasChanges = or . (True <$)
 
 -- | Align a Diff into a list of Join These SplitDiffs representing the (possibly blank) lines on either side.