diff --git a/basics/psi_cookbook.md b/basics/psi_cookbook.md
index 4dd1c12da..a9338599a 100644
--- a/basics/psi_cookbook.md
+++ b/basics/psi_cookbook.md
@@ -4,19 +4,19 @@ title: PSI Cookbook
 
 This page gives a list of recipes for the most common operations for working with the PSI (Program Structure Interface). Unlike [Developing Custom Language Plugins](/reference_guide/custom_language_support.md), it talks about working with the PSI of existing languages (such as Java).
 
-## How do I find a file if I know its name but don't know the path?
+### How do I find a file if I know its name but don't know the path?
 
 `FilenameIndex.getFilesByName()`
 
-## How do I find where a particular PSI element is used?
+### How do I find where a particular PSI element is used?
 
 `ReferencesSearch.search()`
 
-## How do I rename a PSI element?
+### How do I rename a PSI element?
 
 `RefactoringFactory.createRename()`
 
-## How can I cause the PSI for a virtual file to be rebuilt?
+### How can I cause the PSI for a virtual file to be rebuilt?
 
 `FileContentUtil.reparseFiles()`