diff --git a/lua/CopilotChat/prompts.lua b/lua/CopilotChat/prompts.lua
index e8e9ed28..71ac08be 100644
--- a/lua/CopilotChat/prompts.lua
+++ b/lua/CopilotChat/prompts.lua
@@ -343,7 +343,7 @@ function M.resolve_prompt(prompt, config)
 
     config.system_prompt = config.system_prompt:gsub('{OS_NAME}', vim.uv.os_uname().sysname)
     config.system_prompt = config.system_prompt:gsub('{LANGUAGE}', config.language)
-    config.system_prompt = config.system_prompt:gsub('{DIR}', source.cwd())
+    config.system_prompt = config.system_prompt:gsub('{DIR}', source.cwd)
   end
 
   return config, prompt