diff --git a/languages.toml b/languages.toml
index 85785d538..480f2a3e1 100644
--- a/languages.toml
+++ b/languages.toml
@@ -64,7 +64,7 @@ indent = { tab-width = 2, unit = "  " }
 name = "cpp"
 scope = "source.cpp"
 injection-regex = "cpp"
-file-types = ["cc", "cpp", "hpp", "h", "ino"]
+file-types = ["cc", "hh", "cpp", "hpp", "h", "ipp", "tpp", "cxx", "hxx", "ixx", "txx", "ino"]
 roots = []
 comment-token = "//"