diff --git a/doc/ale-cpp.txt b/doc/ale-cpp.txt
index ead3be28..ba7ea7fc 100644
--- a/doc/ale-cpp.txt
+++ b/doc/ale-cpp.txt
@@ -13,6 +13,17 @@ The following C options also apply to some C++ linters too.
 * |g:ale_c_parse_compile_commands|
 
 
+===============================================================================
+astyle                                                         *ale-cpp-astyle*
+
+g:ale_cpp_astyle_executable                       *g:ale_cpp_astyle_executable*
+                                                  *b:ale_cpp_astyle_executable*
+  Type: |String|
+  Default: `'astyle'`
+
+  This variable can be changed to use a different executable for astyle.
+
+
 ===============================================================================
 clang                                                           *ale-cpp-clang*