diff --git a/code/ui/prompt.lua b/code/ui/prompt.lua
index fc0bf7d..36ea8b1 100644
--- a/code/ui/prompt.lua
+++ b/code/ui/prompt.lua
@@ -4,10 +4,10 @@ local function backspace(text)
 	local byteoffset = utf8.offset(text, -1)
 
 	if byteoffset then
-			-- remove the last UTF-8 character.
-			-- string.sub operates on bytes rather than UTF-8 characters,
-			-- so we couldn't do string.sub(text, 1, -2).
-			return string.sub(text, 1, byteoffset - 1)
+		-- remove the last UTF-8 character.
+		-- string.sub operates on bytes rather than UTF-8 characters,
+		-- so we couldn't do string.sub(text, 1, -2).
+		return string.sub(text, 1, byteoffset - 1)
 	end
 
 	return ""