From 055d95bb7e278c94baf06235a52cac79dd13ba67 Mon Sep 17 00:00:00 2001
From: "opencode-agent[bot]"
 <219766164+opencode-agent[bot]@users.noreply.github.com>
Date: Fri, 9 Oct 2026 17:29:16 -0500
Subject: [PATCH] fix(tui): highlight C++ module interface files (#53852)

Co-authored-by: rekram1-node <rekram1-node@users.noreply.github.com>
---
 packages/tui/src/util/filetype.ts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/packages/tui/src/util/filetype.ts b/packages/tui/src/util/filetype.ts
index e52b0effedd..16a89bc0894 100644
--- a/packages/tui/src/util/filetype.ts
+++ b/packages/tui/src/util/filetype.ts
@@ -15,6 +15,11 @@ export const LANGUAGE_EXTENSIONS: Record<string, string> = {
   ".cxx": "cpp",
   ".cc": "cpp",
   ".c++": "cpp",
+  ".cppm": "cpp",
+  ".ccm": "cpp",
+  ".cxxm": "cpp",
+  ".c++m": "cpp",
+  ".ixx": "cpp",
   ".cs": "csharp",
   ".csx": "csharp",
   ".css": "css",