diff --git a/languages.toml b/languages.toml
index 2018efe..4eddfe6 100644
--- a/languages.toml
+++ b/languages.toml
@@ -7,3 +7,5 @@ name = "cpp"
 indent = { unit = "    ", tab-width = 4 }
 file-types = ["cpp", "h", "hpp", "inc"]
 
+[language-server.clangd]
+args = ["-header-insertion=never"]