diff --git a/book/src/install.md b/book/src/install.md
index cbd2c028..bf59ea23 100644
--- a/book/src/install.md
+++ b/book/src/install.md
@@ -79,4 +79,4 @@ ## Building tree-sitter grammars
 
 Tree-sitter grammars must be fetched and compiled if not pre-packaged.
 Fetch grammars with `hx --grammar fetch` (requires `git`) and compile them
-with `hx --grammar build` (requires a C compiler).
+with `hx --grammar build` (requires a C++ compiler).