diff --git a/after/plugin/completion.lua b/after/plugin/completion.lua
index ec04244..b7d05af 100644
--- a/after/plugin/completion.lua
+++ b/after/plugin/completion.lua
@@ -26,6 +26,7 @@ cmp.setup {
   },
 
   sources = {
+    { name = "nvim_lsp_signature_help" },
     { name = "nvim_lsp" },
     { name = "nvim_lua" },
     { name = "cmp_tabnine" },