diff --git a/neovim/.config/nvim/init.lua b/neovim/.config/nvim/init.lua
index cf289f6..0b479e2 100644
--- a/neovim/.config/nvim/init.lua
+++ b/neovim/.config/nvim/init.lua
@@ -57,9 +57,9 @@ opt.shiftwidth = 0 --zero inherrits tabstop.
 opt.autoindent = true
 opt.smartindent = true
 opt.smarttab = true
---space based tabs.
-opt.softtabstop = -1 --negative value inherrits shiftwidth.
+-- for space based tabs, change expandtab to false.
 opt.expandtab = true
+opt.softtabstop = -1 --negative value inherrits shiftwidth.
 --highlight search results as you type.
 opt.hlsearch = true
 opt.incsearch = true
diff --git a/nvim_minimal/.config/nvim/init.lua b/nvim_minimal/.config/nvim/init.lua
index 3ca764d..f5204a1 100644
--- a/nvim_minimal/.config/nvim/init.lua
+++ b/nvim_minimal/.config/nvim/init.lua
@@ -53,9 +53,9 @@ opt.shiftwidth = 0 --zero inherrits tabstop.
 opt.autoindent = true
 opt.smartindent = true
 opt.smarttab = true
---space based tabs.
--- opt.softtabstop=-1 --negative value inherrits shiftwidth.
--- opt.expandtab=true
+-- for space based tabs, change expandtab to false.
+opt.expandtab=false
+opt.softtabstop=-1 --negative value inherrits shiftwidth.
 --highlight search results as you type.
 opt.hlsearch = true
 opt.incsearch = true