diff --git a/chrome/content/zotero/itemTree.jsx b/chrome/content/zotero/itemTree.jsx
index 3b6912e0c1..004cccc404 100644
--- a/chrome/content/zotero/itemTree.jsx
+++ b/chrome/content/zotero/itemTree.jsx
@@ -38,7 +38,7 @@ const { Cc, Ci, Cu } = require('chrome');
 Cu.import("resource://gre/modules/osfile.jsm");
 
 const TYPING_TIMEOUT = 1000;
-const CHILD_INDENT = 20;
+const CHILD_INDENT = 12;
 const COLORED_TAGS_RE = new RegExp("^[0-" + Zotero.Tags.MAX_COLORED_TAGS + "]{1}$");
 const COLUMN_PREFS_FILEPATH = OS.Path.join(Zotero.Profile.dir, "treePrefs.json");