diff --git a/init.lua b/init.lua
index 1813768f8d6..027c537fc9d 100644
--- a/init.lua
+++ b/init.lua
@@ -682,6 +682,10 @@ require('lazy').setup({
           -- Select the [p]revious item
           ['<C-p>'] = cmp.mapping.select_prev_item(),
 
+          -- scroll the documentation window [b]ack / [f]orward
+          ['<C-b>'] = cmp.mapping.scroll_docs(-4),
+          ['<C-f>'] = cmp.mapping.scroll_docs(4),
+
           -- Accept ([y]es) the completion.
           --  This will auto-import if your LSP supports it.
           --  This will expand snippets if the LSP sent a snippet.