diff --git a/usr.bin/diff/diff.1 b/usr.bin/diff/diff.1
index 5c4e0cc172fe..10a349348cfd 100644
--- a/usr.bin/diff/diff.1
+++ b/usr.bin/diff/diff.1
@@ -440,7 +440,7 @@ lines from FILE2
 .It Fl -ignore-file-name-case
 ignore case when comparing file names
 .It Fl -no-ignore-file-name-case
-do not ignore case wen comparing file names (default)
+do not ignore case when comparing file names (default)
 .It Fl -normal
 default diff output
 .It Fl -speed-large-files