diff --git a/README.md b/README.md
index 4e56655..e338c4f 100644
--- a/README.md
+++ b/README.md
@@ -35,7 +35,10 @@ Persistence comes with the following defaults:
 ```lua
 {
   dir = vim.fn.stdpath("state") .. "/sessions/", -- directory where session files are saved
-  save_empty = false, -- don't save if there are no open file buffers
+  -- minimum number of file buffers that need to be open to save
+  -- Set to 0 to always save
+  need = 1,
+  branch = true, -- use git branch to save session
 }
 ```
 
diff --git a/lua/persistence/config.lua b/lua/persistence/config.lua
index 842f9ab..1589857 100644
--- a/lua/persistence/config.lua
+++ b/lua/persistence/config.lua
@@ -6,6 +6,7 @@ local defaults = {
   -- minimum number of file buffers that need to be open to save
   -- Set to 0 to always save
   need = 1,
+  branch = true, -- use git branch to save session
 }
 
 ---@type Persistence.Config
diff --git a/lua/persistence/init.lua b/lua/persistence/init.lua
index a945a46..1acf0b1 100644
--- a/lua/persistence/init.lua
+++ b/lua/persistence/init.lua
@@ -10,6 +10,12 @@ local e = vim.fn.fnameescape
 
 function M.current()
   local name = vim.fn.getcwd():gsub("[\\/:]", "%%")
+  if Config.options.branch then
+    local branch = M.branch()
+    if branch and branch ~= "main" and branch ~= "master" then
+      name = name .. "-" .. branch
+    end
+  end
   return Config.options.dir .. name .. ".vim"
 end
 
@@ -111,4 +117,10 @@ function M.select()
   end)
 end
 
+--- get current branch name
+---@return string?
+function M.branch()
+  return vim.fn.systemlist("git branch --show-current")[1]
+end
+
 return M