diff --git a/lua/lazygit.lua b/lua/lazygit.lua
index 0b05149..fd74854 100644
--- a/lua/lazygit.lua
+++ b/lua/lazygit.lua
@@ -135,7 +135,7 @@ local function open_floating_window()
   vim.cmd('set winhl=Normal:Floating')
 
   -- create a unlisted scratch buffer
-  if LAZYGIT_BUFFER == nil or vim.fn.bufwinnr(LAZYGIT_BUFFER) == 0 then
+  if LAZYGIT_BUFFER == nil or vim.fn.bufwinnr(LAZYGIT_BUFFER) == -1 then
     LAZYGIT_BUFFER = api.nvim_create_buf(false, true)
   else
     LAZYGIT_LOADED = true