diff --git a/clang/docs/LanguageExtensions.rst b/clang/docs/LanguageExtensions.rst
index 87f7df50471e79..057ad564f970bb 100644
--- a/clang/docs/LanguageExtensions.rst
+++ b/clang/docs/LanguageExtensions.rst
@@ -101,7 +101,7 @@ the constant evaluation of the corresponding builtin (for example,
 ``std::fmax`` calls ``__builtin_fmax``) is supported in Clang.
 
 ``__has_target_builtin``
------------------
+------------------------
 
 This function-like macro takes a single identifier argument that is the name of
 a builtin function, a builtin pseudo-function (taking one or more type