diff --git a/runtime/doc/fold.txt b/runtime/doc/fold.txt
index 24a8dcb..4f27933 100644
--- a/runtime/doc/fold.txt
+++ b/runtime/doc/fold.txt
@@ -60,7 +60,7 @@
 The nesting of folds is limited with 'foldnestmax'.
 
 Some lines are ignored and get the fold level of the line above or below it,
-whatever is the lowest.  These are empty or white lines and lines starting
+whichever is lower.  These are empty or white lines and lines starting
 with a character in 'foldignore'.  White space is skipped before checking for
 characters in 'foldignore'.  For C use "#" to ignore preprocessor lines.