diff --git a/README.md b/README.md
index 3b7c6fc75..f4d82db58 100644
--- a/README.md
+++ b/README.md
@@ -107,7 +107,7 @@ All modules are disabled by default and need to be activated explicitly in your
 lua <<EOF
 require'nvim-treesitter.configs'.setup {
   ensure_installed = "maintained", -- one of "all", "maintained" (parsers with maintainers), or a list of languages
-  sync_install = true, -- install languages synchronously
+  sync_install = false, -- install languages synchronously
   ignore_install = { "javascript" }, -- List of parsers to ignore installing
   highlight = {
     enable = true,              -- false will disable the whole extension
diff --git a/lua/nvim-treesitter/configs.lua b/lua/nvim-treesitter/configs.lua
index 93e996b8e..a31d7fd79 100644
--- a/lua/nvim-treesitter/configs.lua
+++ b/lua/nvim-treesitter/configs.lua
@@ -368,7 +368,7 @@ function M.setup(user_data)
   local ensure_installed = user_data.ensure_installed or {}
   if #ensure_installed > 0 then
     if user_data.sync_install then
-      require("nvim-treesitter.install").ensure_sync_installed(ensure_installed)
+      require("nvim-treesitter.install").ensure_installed_sync(ensure_installed)
     else
       require("nvim-treesitter.install").ensure_installed(ensure_installed)
     end
diff --git a/lua/nvim-treesitter/install.lua b/lua/nvim-treesitter/install.lua
index 8b7dd042d..599fa3017 100644
--- a/lua/nvim-treesitter/install.lua
+++ b/lua/nvim-treesitter/install.lua
@@ -521,7 +521,7 @@ function M.write_lockfile(verbose, skip_langs)
 end
 
 M.ensure_installed = install { exclude_configured_parsers = true }
-M.ensure_sync_installed = install { with_sync = true, exclude_configured_parsers = true }
+M.ensure_installed_sync = install { with_sync = true, exclude_configured_parsers = true }
 
 M.commands = {
   TSInstall = {