diff --git a/init.lua b/init.lua
index 2c8fb7b5..e4f20b29 100644
--- a/init.lua
+++ b/init.lua
@@ -637,7 +637,7 @@ cmp.setup {
   mapping = cmp.mapping.preset.insert {
     ['<C-n>'] = cmp.mapping.select_next_item(),
     ['<C-p>'] = cmp.mapping.select_prev_item(),
-    ['<C-d>'] = cmp.mapping.scroll_docs(-4),
+    ['<C-b>'] = cmp.mapping.scroll_docs(-4),
     ['<C-f>'] = cmp.mapping.scroll_docs(4),
     ['<C-Space>'] = cmp.mapping.complete {},
     ['<CR>'] = cmp.mapping.confirm {