diff --git a/llvm/docs/LangRef.rst b/llvm/docs/LangRef.rst
--- a/llvm/docs/LangRef.rst
+++ b/llvm/docs/LangRef.rst
@@ -4,7 +4,7 @@
 
 .. contents::
    :local:
-   :depth: 4
+   :depth: 3
 
 Abstract
 ========