diff --git a/.config/nvim/lua/my/completion.lua b/.config/nvim/lua/my/completion.lua
index 7fe704c..1605311 100644
--- a/.config/nvim/lua/my/completion.lua
+++ b/.config/nvim/lua/my/completion.lua
@@ -71,9 +71,11 @@ if cmp and luasnip then
     -- Use buffer source for `/`
     cmp.setup.cmdline('/', {
         mapping = cmp.mapping.preset.cmdline(),
-        sources = {
+        sources = cmp.config.sources({
+            { name = 'nvim_lsp_document_symbol' }
+        }, {
             { name = 'buffer' }
-        }
+        })
     })
 
     -- Use cmdline & path source for ':'
diff --git a/.config/nvim/lua/my/plugins.lua b/.config/nvim/lua/my/plugins.lua
index aa28289..cfe3201 100644
--- a/.config/nvim/lua/my/plugins.lua
+++ b/.config/nvim/lua/my/plugins.lua
@@ -62,7 +62,8 @@ require('packer').startup({ function(use)
             },
             'https://github.com/hrsh7th/cmp-nvim-lua',
             'https://github.com/uga-rosa/cmp-dictionary',
-            'https://github.com/f3fora/cmp-spell'
+            'https://github.com/f3fora/cmp-spell',
+            'https://github.com/hrsh7th/cmp-nvim-lsp-document-symbol'
         }
     }