diff --git a/config/nvim/lua/fs/keymaps.lua b/config/nvim/lua/fs/keymaps.lua
index 29a1d6a..6a9dbbf 100644
--- a/config/nvim/lua/fs/keymaps.lua
+++ b/config/nvim/lua/fs/keymaps.lua
@@ -64,3 +64,6 @@ nmap { '<leader>ev', '<cmd>tabedit ~/.config/nvim/init.lua<cr>' }
 nmap { '<leader>es', '<cmd>tabedit ~/.config/nvim/spell/en.utf-8.add<cr>' }
 nmap { '<leader>ez', '<cmd>tabedit ~/.config/zsh/.zshrc<cr>' }
 
+-- show syntax highlight groups for symbol under the cursor
+nmap { '<leader>sh', '<cmd>lua require"fs.util".syntax_stack()<cr>' }
+
diff --git a/config/nvim/lua/fs/util.lua b/config/nvim/lua/fs/util.lua
index d89fb80..b243436 100644
--- a/config/nvim/lua/fs/util.lua
+++ b/config/nvim/lua/fs/util.lua
@@ -62,5 +62,14 @@ M.highlight = function(group, highlights)
   vim.cmd(cmd)
 end
 
+M.syntax_stack = function()
+  local line = vim.fn.line('.')
+  local col = vim.fn.col('.')
+  if vim.fn.exists("*synstack") then
+    local ids = vim.fn.synstack(line, col)
+    P(vim.fn.map(ids, 'synIDattr(v:val, "name")'))
+  end
+end
+
 return M