diff --git a/git-add--interactive.perl b/git-add--interactive.perl
index cf6fc926ab..982593c89e 100755
--- a/git-add--interactive.perl
+++ b/git-add--interactive.perl
@@ -1678,7 +1678,7 @@ sub help_cmd {
 update        - add working tree state to the staged set of changes
 revert        - revert staged set of changes back to the HEAD version
 patch         - pick hunks and update selectively
-diff	      - view diff between HEAD and index
+diff          - view diff between HEAD and index
 add untracked - add contents of untracked files to the staged set of changes
 EOF
 }