From 5c1dbd7795d60d5a5baf1ddd022e3de5b2eaa27a Mon Sep 17 00:00:00 2001
From: BrettMayson <brett@mayson.io>
Date: Wed, 30 Sep 2026 00:00:45 -0600
Subject: [PATCH] Update file extension check in graph.tl

---
 src/cyan/graph.tl | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/cyan/graph.tl b/src/cyan/graph.tl
index b599ebe..0eb9f31 100644
--- a/src/cyan/graph.tl
+++ b/src/cyan/graph.tl
@@ -355,8 +355,8 @@ function graph.scan_directory(source_dir: lexical_path.Path, include?: {string |
 
    local cwd <const> = fs.current_directory()
    for p in fs.scan_directory(source_dir, include, exclude) do
-      local ext <const> = p:extension(2):lower()
-      if ext == "tl" or ext == "lua" then
+      local ext <const> = p:extension():lower()
+      if (ext == "tl" or ext == "lua") and name:sub(-2) ~= ".d" then
          unchecked_insert(d, p, abs_src, cwd)
       end
    end