diff --git a/README.md b/README.md
index b414f9a..519d792 100644
--- a/README.md
+++ b/README.md
@@ -105,13 +105,7 @@ to the trash location.
 - `.copyRelativeDirectoryPath` or `:CopyRelativeDirectoryPath`: Copy the
   relative directory path.
 
-When `clipboard="unnamed[plus]"` has been set, copies to the `+` register,
-otherwise to `"`. To always use system clipboard, put this in your configuration
-file:
-
-```lua
-vim.g.genghis_use_systemclipboard = true
-```
+All commands use the system clipboard.
 
 ### Disable Ex-Commands
 
diff --git a/lua/genghis/init.lua b/lua/genghis/init.lua
index 20083df..5c7ee9d 100644
--- a/lua/genghis/init.lua
+++ b/lua/genghis/init.lua
@@ -194,14 +194,9 @@ end
 ---copying file information
 ---@param expandOperation string
 local function copyOp(expandOperation)
-	local reg = '"'
-	local clipboardOpt = vim.opt.clipboard:get()
-	local useSystemClipb = vim.g.genghis_use_systemclipboard
-		or (#clipboardOpt > 0 and clipboardOpt[1]:find("unnamed"))
-	if useSystemClipb then reg = "+" end
-
+	local register = "+"
 	local toCopy = fn.expand(expandOperation)
-	fn.setreg(reg, toCopy)
+	fn.setreg(register, toCopy)
 	vim.notify(toCopy, vim.log.levels.INFO, { title = "Copied" })
 end