diff --git a/extension.toml b/extension.toml
index 92b23ac..2189ab2 100644
--- a/extension.toml
+++ b/extension.toml
@@ -11,7 +11,14 @@ repository = "https://github.com/zed-extensions/swift"
 
 [language_servers.sourcekit-lsp]
 name = "sourcekit-lsp"
-language = "Swift"
+languages = ["Swift", "C", "C++", "Objective-C", "Objective-C++"]
+
+[language_servers.sourcekit-lsp.language_ids]
+Swift = "swift"
+C = "c"
+"C++" = "cpp"
+"Objective-C" = "objective-c"
+"Objective-C++" = "objective-cpp"
 
 [grammars.swift]
 repository = "https://github.com/alex-pinkus/tree-sitter-swift"